$79 Find Cheap Flights from Seattle to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to the United States departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Seattle to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New Yorknonstop$309
Orlando
Orlando1 stop$363
Los Angeles
Los Angelesnonstop$132
Las Vegas
Las Vegasnonstop$144
Chicago
Chicagononstop$352
San Francisco
San Franciscononstop$166
Miami
Miami1 stop$288
Boston
Bostonnonstop$316
Fort Lauderdale
Fort Lauderdale1 stop$342
Washington, D.C.
Baltimore1 stop$227
Denver
Denvernonstop$173
Atlanta
Atlanta1 stop$309
Dallas
Dallas1 stop$294
Phoenix
Phoenix1 stop$212
Tampa
Tampa1 stop$272
Houston
Houston1 stop$268
San Diego
San Diegononstop$187
Honolulu
Honolulu2 stops$433
Philadelphia
Philadelphianonstop$329
New York
New Yorknonstop$309
Orlando
Orlando1 stop$363
Los Angeles
Los Angelesnonstop$132
Las Vegas
Las Vegasnonstop$144
Chicago
Chicagononstop$352
San Francisco
San Franciscononstop$166
Miami
Miami1 stop$288
Boston
Bostonnonstop$316
Fort Lauderdale
Fort Lauderdale1 stop$342
Washington, D.C.
Baltimore1 stop$227
Denver
Denvernonstop$173
Atlanta
Atlanta1 stop$309
Dallas
Dallas1 stop$294
Phoenix
Phoenix1 stop$212
Tampa
Tampa1 stop$272
Houston
Houston1 stop$268
San Diego
San Diegononstop$187
Honolulu
Honolulu2 stops$433
Philadelphia
Philadelphianonstop$329

Book Cheap Seattle to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to the United States

Fri, Sep 11 - Mon, Sep 14
Frontier Logo
11:06 am - 2:01 pm
SEA
-
LAX
2h 55mnonstop
Frontier Logo
3:16 pm - 6:26 pm
LAX
-
SEA
3h 10mnonstop
$132Frontier
Sat, Sep 12 - Thu, Sep 17
Frontier Logo
2:15 pm - 5:03 pm
SEA
-
LAX
2h 48mnonstop
Frontier Logo
3:16 pm - 6:26 pm
LAX
-
SEA
3h 10mnonstop
$133Frontier
Tue, Jul 14 - Wed, Jul 22
Alaska Airlines Logo
7:03 am - 9:20 am
SEA
-
SFO
2h 17mnonstop
Alaska Airlines Logo
7:03 am - 9:13 am
SFO
-
SEA
2h 10mnonstop
$166Alaska Airlines
Sat, Oct 10 - Tue, Oct 13
Delta Logo
9:25 pm - 11:41 pm
SEA
-
SFO
2h 16mnonstop
Delta Logo
10:31 am - 12:55 pm
SFO
-
SEA
2h 24mnonstop
$169Delta
Sat, Oct 10 - Tue, Oct 13
Alaska Airlines Logo
5:59 pm - 8:17 pm
SEA
-
SFO
2h 18mnonstop
Alaska Airlines Logo
6:00 am - 8:16 am
SFO
-
SEA
2h 16mnonstop
$170Alaska Airlines
Sat, Aug 22 - Wed, Sep 2
American Airlines Logo
6:10 am - 6:00 pm
SEA
-
JFK
8h 50m
1 stop
American Airlines Logo
3:30 pm - 9:59 pm
JFK
-
SEA
9h 29m
1 stop
$318American Airlines
Sat, Sep 26 - Sat, Oct 3
Delta Logo
11:59 pm - 10:57 am
SEA
-
EWR
7h 58m
1 stop
Delta Logo
7:15 am - 1:00 pm
EWR
-
SEA
8h 45m
1 stop
$319Delta
Wed, Sep 16 - Sat, Sep 19
American Airlines Logo
8:24 am - 8:00 pm
SEA
-
JFK
8h 36m
1 stop
American Airlines Logo
12:00 pm - 6:37 pm
JFK
-
SEA
9h 37m
1 stop
$319American Airlines
Wed, Jul 1 - Fri, Jul 3
United Airlines Logo
1:55 pm - 8:21 pm
SEA
-
ORD
4h 26mnonstop
United Airlines Logo
7:00 am - 9:40 am
ORD
-
SEA
4h 40mnonstop
$355United Airlines
Tue, Jun 30 - Sat, Jul 4
United Airlines Logo
11:11 pm - 5:18 am
SEA
-
ORD
4h 07mnonstop
United Airlines Logo
6:59 am - 9:39 am
ORD
-
SEA
4h 40mnonstop
$359United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to the United States flights

Get data-powered insights and trends into flights from Seattle to the United States to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seattle to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Seattle found in the last 5 days was to Las Vegas, at $112 round-trip. The most popular route is from Seattle (SEA) to Los Angeles (LAX), and the cheapest round-trip airline ticket found on this route in the last 5 days was $157.

What is the cheapest time of day to fly to the United States?

The average price for all round-trip flights from Seattle to the United States depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United States is generally in the evening, when round-trip flights cost $398 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $447.

Can I save money by flying with a layover from Seattle to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 3 stops layover the cheapest option at $415 on average.

What is the cheapest month to fly from Seattle to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to the United States is January, when tickets cost $293 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $415 and $391 respectively.

What’s the cheapest day of the week to fly from Seattle to United States?

The average price of all round-trip flights from Seattle to the United States clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Seattle to United States, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from United States, Friday is the cheapest day to fly and Monday is the most expensive.

How far in advance should I book a flight from Seattle to the United States?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to the United States, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to the United States, you should book around 3 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$79
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Seattle to Las Vegas

Flights from Seattle to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Seattle to the United States 
PatriciaFlew with Alaska Airlines
SEA
-
RNO
Jun 2026
Seattle is a huge complicated airport. Allow time to change gates if your passing through. And to get thru TSA and to your gate can take time
MaryFlew with Alaska Airlines
SEA
-
YKM
Apr 2026
Also there is a lot of walking always make sure you have enough time in between flights get situated on your gate and tsa then use the restroom and snacks it helps alot
JerryFlew with Alaska Airlines
SEA
-
PHX
Apr 2026
Bring your own entertainment or download a movie on your computer/tablet ahead of time.
GeraldFlew with Delta
SEA
-
SJC
Mar 2026
Flights earlier in the day are better - less chance of stacking delays. Much better than SFO flights, They're terrible in August (fog).
AndrewFlew with Alaska Airlines
SEA
-
LAS
Apr 2026
If you are using ride share (uber, lyft) start the process right away as the wait can be long.
MicheleFlew with Alaska Airlines
SEA
-
ABQ
May 2026
Be sure your actually getting window seats before paying extra fees.
GFlew with Hawaiian Airlines
SEA
-
OGG
Mar 2026
Bring your own food on the plane. Don't expect much.
MarkFlew with Delta
SEA
-
MIA
Mar 2026
If you're not in 1st class, you'll want a seat cushion. We were in comfort extra and both had sore tailbones. Seats very uncomfortable after a couple of hours.
Putri ArumFlew with Japan Airlines
SEA
-
DCA
Mar 2026
Bring your own foods. There should also be a disclaimer on the ticket that foods will not be provided although this is a relatively long flight.
DebraFlew with Alaska Airlines
SEA
-
DEN
Feb 2026
Seattle TSA much improved. Faster service. Baggage check-in ok. I'm sure will get faster as people get used to it.
RickFlew with Alaska Airlines
SEA
-
PDX
Jan 2026
Seattle customs is easy. No crowds. Another big hike. Wear walking shoes.
ChristineFlew with Hawaiian Airlines
SEA
-
PSP
Dec 2025
Arrive early to go through security unless you have TSA pre check and/or CLEAR
rsmrostovFlew with Alaska Airlines
SEA
-
BOS
Jan 2026
If you have a small personal bag and a personal item you will be hustled to consolidate snacks on the flight of very poor so bring your own food and if you have an Android phone you likely will have issues connecting to Wi-Fi on the plane especially if the connection was dropped in the middle of watching a movie and then you attempt to reinstate it sometimes you have to clear browsing history and cookies becomes painful
Verified travelerFlew with Hawaiian Airlines
SEA
-
KOA
Jul 2025
Flying Alaska is great you just need to hours ahead to check in to TSA but other than that it felt safe and assured.
MarisaFlew with American Airlines
SEA
-
LAX
Jun 2025
Take Alaska Airlines - Clear was great to have at both airports, especially seattle where there was a large security line
Verified travelerFlew with Alaska Airlines
SEA
-
STL
Jul 2025
Give yourself extra time. Love the self check in options.
KimberlyFlew with Delta
SEA
-
FLL
Jul 2025
Ask for headphones to watch screen movies as all of mine are bluetooth and that will not work. Bring own food and wait until plane moves before hooking up to Deltawifi.
Verified travelerFlew with Hawaiian Airlines
SEA
-
ONT
Jun 2025
Make sure to be there on time because the bag drop off can be a little complicated and it takes quite some time to get to the gate.
MichelleFlew with Hawaiian Airlines
SEA
-
BLI
Jun 2025
Flights in the late afternoon and evenings are often delayed, just be prepared for that.
Verified travelerFlew with Scandinavian Airlines
SEA
-
MFR
Jun 2025
Be prepared for a long layover. Direct flights to Medford are slim.
Verified travelerFlew with Alaska Airlines
SEA
-
MKE
Jun 2025
Order ahead or bring own meal on plane
Verified travelerFlew with Frontier
SEA
-
PHX
Jun 2025
Wish I had known the seats were so uncomfortable. Wish I had known checked bags and carry on bags were 75 each. Wish I didn't have to wait so long in line with only one clerk working. Wish I had known we were going to have to take a bus from the gate to our airplane. Wish I had known the seat space is smaller than any other airline I have flown. I do not recommend Frontier.
Verified travelerFlew with Alaska Airlines
SEA
-
DEN
Mar 2025
Alaska Air is very efficient & on-time so allow enough time to get luggage, go thru Customs & Immigration, & long security lines. Terminals in SEA are readily accessible by trains but more signage is needed. Fortunately, Information booths are everywhere & are manned by very helpful staff.
ShuraFlew with Alaska Airlines
SEA
-
BUR
Apr 2025
Don’t . Delta has all the gates together for easy transfers and much more food and beverage selection
MichaelFlew with Delta
SEA
-
DEN
Apr 2025
Train from Denver airport to downtown is easy to use.
Verified travelerFlew with Alaska Airlines
SEA
-
CLE
Mar 2025
If you have a rental car, give yourself time to catch the shuttle to the airport. Also be aware traffic is awful and will often be standstill on the way to the airport.
JanFlew with Alaska Airlines
SEA
-
ANC
Apr 2025
Again snacks unless you want to eat prior or order ahead of time for flight. Wear layers as usually warm or as my case a little cool.
SuzetteFlew with Alaska Airlines
SEA
-
IAD
May 2025
Take a shower before arriving at airport and don't wear perfume at all! Pack bags tight, so boarding is smooth and quick.
AngelFlew with Alaska Airlines
SEA
-
ABQ
Mar 2025
Fly into a different city with more options for departure times. Not to have a six hour layover.
DanielFlew with Alaska Airlines
SEA
-
IAD
May 2025
Seatac has gnarly traffic right now, took 35min to get from highway exit to the terminal
RobertFlew with United Airlines
SEA
-
SFO
Mar 2025
If you’re picking up a rental car it’s not very clear that you have to take the train. Signage can be improved at SFO.
Verified travelerFlew with Alaska Airlines
SEA
-
PSP
Dec 2024
Be courteous of your fellow travelers. Remember the carry on baggage rules. Keep your jackets out of the storage bin on full flights. Don't move other people's luggage from one bin to another. Step out of the isle as quickly as you can. Be sure you're in the seat(s) assigned to you.
DanaFlew with Alaska Airlines
SEA
-
MKE
Sep 2024
That was my first time flying Milwaukee to Seattle & vice versa. I think we choose a good airline. Seattle’s traffic & airport is busier than Milwaukee so get there at least 2 hours early. Download & keep an eye on the Alaska airline app for flight info updates.
Verified travelerFlew with Alaska Airlines
SEA
-
ONT
Oct 2024
SeaTac lets you make an appointment to get through security. SpotSaver. No cost. Online.
KimberleyFlew with Alaska Airlines
SEA
-
OGG
Nov 2024
Pack snacks and patience. Ear plugs or noise-cancelling headphones are a must!
Verified travelerFlew with Alaska Airlines
SEA
-
MCI
Oct 2024
TSA lines in Seattle can get very long early in the day. Also, plan to return your rental car early since you have to take a shuttle bus to the terminal and those lines can get long early in the day, too. Currently there is construction in the North Terminal, so be prepared for moving around barriers. The day I flew out, the escalators were not working.
BarbFlew with Delta
SEA
-
MSP
Sep 2024
Try not to get to the airport too early. We came off of a cruise and had a 6 hour wait. Unlike MSP, SEATAC didn’t have free WiFi. But, McDonald’s did. And the three hours before the flight we used the Delta Lounge which is always amazing.
Verified travelerFlew with Alaska Airlines
SEA
-
HNL
Sep 2024
Bring your own food or eat before boarding. Get to that airport 3 hours early for a domestic flight, the TSC screening line was 45 minutes long and if you have to walk to the other side of the terminal you might have to run.
JoanFlew with Alaska Airlines
SEA
-
JFK
Nov 2024
SeaTac should add sand to the painted floor from the terminal to the light rail. It is VARY slippery when wet and the northwest (Seattle) is known for rain.
BrandonFlew with Alaska Airlines
SEA
-
IND
Oct 2024
Arrive to the Seattle airport much earlier than you would the Indianapolis airport. This might be obvious, but the Seattle airport is much larger than the Indianapolis one.
Verified travelerFlew with Alaska Airlines
SEA
-
DFW
Oct 2024
Long train ride in Dallas to gates, but pretty easy to navigate, no real issues
StephenFlew with Alaska Airlines
SEA
-
RNO
Oct 2024
Buy food in the larger terminals. Gate S was an outpost
KathyFlew with Alaska Airlines
SEA
-
HNL
Sep 2024
Bring warm clothing, a blsnket, your own water to keep hydrated.
DeeFlew with Alaska Airlines
SEA
-
DFW
Sep 2024
Arrive early as repairs and construction underway at Seatac.
ReidFlew with United Airlines
SEA
-
LAX
Oct 2024
SeaTac does not have a very good or equitable system for security lines. First class passengers don’t have a TSA precheck option, while there are only 2 TSA precheck lines on opposite sides of the terminal. Highly recommend getting TSA plus Clear, as the airport heavily favors this combination, with each section of the terminal having one of these options. I almost missed my flight because the only TSA precheck line was about 45 minutes long.
BruceFlew with Alaska Airlines
SEA
-
LAX
Nov 2024
Tight interline connection at LAX - barely made the flight. Directions from AS arrival gate to separate AA commuter terminal for AS codeshare flight connecting to TUS would have been nice.
Verified travelerFlew with Alaska Airlines
SEA
-
BOS
Jul 2024
Generally Alaska Airlines have very friendly and helpful people in my experience. They don’t have TVs in all planes so make sure to download their app if you want entertainment on the plane.
Verified travelerFlew with Alaska Airlines
SEA
-
BNA
Jul 2024
Fill or buy a bottle with screw on cap with water for flight. If you have to get up and down it can be placed behind the seat in of you.
KimberlyFlew with Alaska Airlines
SEA
-
SNA
Jul 2024
When going to Disneyland fly to this airport. Only 8 miles from Disneyland and super quick to check in and check out. Highly recommend this airport!
KateFlew with Alaska Airlines
SEA
-
CMH
Aug 2024
Get to the airport early. It’s much busier than the Columbus airport. It’s worth going earlier so you aren’t anxious about missing your flight.
Verified travelerFlew with Alaska Airlines
SEA
-
BUR
Aug 2024
Burbank Airport is the best place to start your travels: small airport, short lines, and easy check in.
Verified travelerFlew with Alaska Airlines
SEA
-
IND
Jun 2024
Get to the airport with plenty of time before your flight. Sea-Tac is one busy airport!
Verified travelerFlew with Alaska Airlines
SEA
-
BWI
Jul 2024
bring wireless earphones and chargers. you have to use your own phone if you want to watch movies or tv onboard.
FrankFlew with Alaska Airlines
SEA
-
TPA
Aug 2024
Make sure you have seat assigned at check in or you will have to wonder and be on a wait list.
kabirFlew with American Airlines
SEA
-
DFW
Aug 2024
Red eye flights can be a full flight. If possible, upgrade your seat. Stay away from sitting by flight attendant
Verified travelerFlew with Alaska Airlines
SEA
-
SJC
Aug 2024
The airport is busy and a mess with construction. There is a train to take so account for extra time.
Verified travelerFlew with Alaska Airlines
SEA
-
DFW
Jun 2024
If you like your feet warm, avoid wearing sandles. Cool air blew across my feet for almost four (4) hours.
Verified travelerFlew with Alaska Airlines
SEA
-
EAT
Jul 2024
They will not wait for anyone so make sure you are there with plenty of time to spare
Verified travelerFlew with United Airlines
SEA
-
ORD
Jul 2024
Budget if you’re planning on shopping for meals or souvenirs at Sea-Tac, it’s not cheap.
Verified travelerFlew with Alaska Airlines
SEA
-
PHX
Jul 2024
Seattle is a busy gate. Find your gate first as connections may involve underground tram.
Verified travelerFlew with Alaska Airlines
SEA
-
DFW
Jul 2024
Arrive early. Busy airport and rental car return is far from Airport
Verified travelerFlew with Alaska Airlines
SEA
-
PIT
Jun 2024
The SeaTac airport is huge and busy, get there early.
Verified travelerFlew with Alaska Airlines
SEA
-
DFW
Jun 2024
Bring snacks, water, and a change of clothes.
Verified travelerFlew with Alaska Airlines
SEA
-
SNA
Aug 2024
Flight was delayed 9-1/2 hours. Make sure you have somewhere to go in you have to check out of your hotel.
Verified travelerFlew with Frontier
SEA
-
LAS
Aug 2024
Get there very early. The Seattle airport is nuts! I got there three hours early and barely made my flight!
LauraFlew with Alaska Airlines
SEA
-
LAX
Jul 2024
LAX is a bit of a mess. Very long walk between terminals.
Verified travelerFlew with American Airlines
SEA
-
DFW
Mar 2024
The people mover in DFW is really fast. It can get you to your gate faster than you can run, for sure!
Verified travelerFlew with Alaska Airlines
SEA
-
FAT
Mar 2024
Enjoy the flight. You can see Yosemite national park half dome and el capitan from left side window seat
Verified travelerFlew with Alaska Airlines
SEA
-
LAS
Apr 2024
Always come early so you don’t experience waiting times
Verified travelerFlew with Alaska Airlines
SEA
-
DEN
May 2024
When flying from Seattle to Denver, be ready to take our any electronics and put them in separate bins when going through security. You will also most likely have to take off your jacket as well. During our flight back the flight randomly changed so be on the lookout in case that happens to you! It was by chance that I checked my ticket and saw that the gate changed last minute.
ElaineFlew with Alaska Airlines
SEA
-
PHL
May 2024
If you have any metal in your body (e.g., spinal fusion screws) make sure you get in the line for the TSA security screening booth that makes you stand on the yellow marks with your arms over your head. I wish I had known this before I wasted time in the alternate line with the walk-through detector.
BrentFlew with Alaska Airlines
SEA
-
BNA
May 2024
Seattle is a cluster, too. You have to enter at one end of the terminal to check bags, walk to the other end of the terminal for non-Pre-TSA security checks, then back again to the starting end fir the boarding gates.
PeggyFlew with Alaska Airlines
SEA
-
EWR
May 2024
Bring earbuds or head phones to watch movies on your electronic devices. The plane doesn’t have a screen for showing movies.
JayFlew with Alaska Airlines
SEA
-
JFK
May 2024
Bring entertainment since there are no screens available to watch movies or check on current map of destination.
Verified travelerFlew with Delta
SEA
-
MCO
Mar 2024
1.5hr early arrival for redeye flight was enough.
MelissaFlew with Alaska Airlines
SEA
-
HNL
May 2024
Bring your own snacks because they will not feed you any kind of a big meal and it’s five hours. It’s a long time to wait without food. You do get a pretzel bag and a cookie and two drinks but that’s not enough.
Verified travelerFlew with Alaska Airlines
SEA
-
TPA
Feb 2024
Alaska is a great airline and price is great, but be flexible on time. Pack a lunch and bring a water bottle to fill up beyond the check point…
LaurenFlew with Delta
SEA
-
LAX
Feb 2024
If you have kids, bring your own screens. We were counting on the inflight entertainment and it was a definite letdown. Also, TSA Pre-check is only available at station 2, but wait times are posted at each station so you can see if it’s worth the walk.
Verified travelerFlew with Alaska Airlines
SEA
-
RNO
Jan 2024
have devices fully charged- no charging ports and no outlets gate check your bags because the compartments are SOOOO tiny and there is room for maybe 60% of the passengers to place items in these compartments
Verified travelerFlew with Alaska Airlines
SEA
-
BOI
Feb 2024
Keep an eye on boarding time. At SEATAC, if you are not sitting at your exact gate, you cannot hear boarding announcements.
Verified travelerFlew with Alaska Airlines
SEA
-
STL
Feb 2024
Be sure to measure your wheels for carry on my luggage was the correct size but the wheels made it over so had to check my bag wasn't happy about that since you have to pay for checked should at least get one free.

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Seattle to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Denver $175 one-way - $320 round-trip; Los Angeles $158 one-way - $243 round-trip; Chicago $205 one-way - $378 round-trip

Reviews of the top 5 airlines serving from Seattle to the United States

 
Need help choosing which airline to fly with from Seattle to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12550 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.1Food
7.0Entertainment
Airline reviews

I was very surprised that at the Seattle airport, Alaska's main hub, that the gates were very small and very close together, and it was very hard to discourage between my flight, and the flight next to us going to Boise and the flight next to that going to Denver. Denver. The audio for all three Gates was at the same level, and almost impossible to differentiate unless they actually said their flight number and location. Location. People tried to get on our plane, before they were ready, because they were confused about the Denver announcements. We were on a Boeing 737- 800 00, that must have recently been redone. It actually had USB--c ports which really surprised me. The Apu was out on the plane, so when we got on it was very very hot. A lot of people were complaining. The gate agents were very professional, but it was a lot going on and even though there were two of them, I think they could have used another person to help them. Mandy was particularly helpful in getting me a window seat. Flight crew was up to the usual Alaska airline standard, which is very high. Can we please get another snack then garlic pretzels? It would also be nice, if they knew ahead that the flight was full, to offer to let us check in our bags for free at baggage check, and not at the gate!

8.0 ExcellentWilliam Drew, Jun 2026
SEA - SFO
Read more Alaska Airlines reviews

I was very surprised that at the Seattle airport, Alaska's main hub, that the gates were very small and very close together, and it was very hard to discourage between my flight, and the flight next to us going to Boise and the flight next to that going to Denver. Denver. The audio for all three Gates was at the same level, and almost impossible to differentiate unless they actually said their flight number and location. Location. People tried to get on our plane, before they were ready, because they were confused about the Denver announcements. We were on a Boeing 737- 800 00, that must have recently been redone. It actually had USB--c ports which really surprised me. The Apu was out on the plane, so when we got on it was very very hot. A lot of people were complaining. The gate agents were very professional, but it was a lot going on and even though there were two of them, I think they could have used another person to help them. Mandy was particularly helpful in getting me a window seat. Flight crew was up to the usual Alaska airline standard, which is very high. Can we please get another snack then garlic pretzels? It would also be nice, if they knew ahead that the flight was full, to offer to let us check in our bags for free at baggage check, and not at the gate!

On time, good seats, not overly full, up beast positive crew.

Airport security lines in Seattle were awful. The only staff that was pleasant and made the trip more enjoyable was the young woman at the gate in Seattle. She was so pleasant and helpful. Flight attendant on the plane seemed like she would rather be anywhere but on that plane.

People were friendly. Flight was a little delayed. Maybe I missed the reason for it. Overall a nice experience.

Crews were friendly enough. To help the airline I checked my carry on baggage. Typical "gonna be a full flight we need 19 carry on bags to be checked to help out". So I helped out only to have to wait 30+ mins for my luggage and risked not getting to my car rental on time. The return flight was delayed. Kept hearing employees say something about "they didn't have any power" which is kind of concerning. The air flow and air conditioning was insufficient. It was warm and stuffy during the flight. Plus no free wi-fi......Booooooo!

Didn’t even get on, check my flight to Seattle for details. Do better Alaska.

A five hour nonstop flight traveling over a few time zones and over the dinner hour and you get a small bag of pretzels. And no screens to watch movies. I

The flight kept getting delayed due to a maintenance issue. That happens, but there is no excuse for changing the gate FIVE TIMES, including one time nearly all the way across SeaTac. After we were delayed for 3+ hours, they did send us (via email) a $12 meal voucher...except you can't find a $12 meal anywhere in that airport, unless you consider a bag of M&M's and a bottle of water a meal. The plane had one problem after another but finally took off 4.5 hours late. This caused us to miss our hotel shuttle at ORD (they didn't run past midnight and it was 3 am) so we had to wait 25 minutes and pay for an Uber. I did get a $50 flight voucher from Alaska...big deal. Barely covers my Uber ride that I shouldn't have needed.

I upgraded to a better seat and it was much more comfortable. Nobody serves food anymore and actually on a 2+ hr flight not necessary. I didn’t even get water.

Check in & bag drop was straightforward. Alaskair changed the gate approx 40 min before departure, and I only became aware due to Google wallet update to my boarding pass. Had to move from gate N1 to C9 which required use of the Train, luckily I had time available.

Flight got canceled 4 times, missed my connecting flight due to delays, have to wait to go home tomorrow

Third flight in two months where the crew was not there. Comfort seating does not guarantee overhead bin space. Passengers with children are allowed on the plane first - if you are flying to and from Orlando, this means half the plane has boarded before you get on. And somehow all the bin space is taken up. 3 out of 5 flights have had issues with equipment or procedure. Some of these instances caused the flight to be delayed because of a "nuisance" light. One time it was a bag that had been brought on board but did not belong to anyone so we had to return to the gate. Last night we were told the "AC" on the plane doesn't work well and we're 10th for take off- because the crew was late - and that it will get cool when we're in the air. Not sure if this is usual, but I didn't think flight crew could jump seat in first class. Movie and TV selection has not been refreshed for several months- flying one to two round trips each month easily exhausts the list of content.

Great experience nice pilot very soft and easy landing and take off

We sat on the runway for over an hour before departure. That was unwelcome.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Flight was delayed three times and we had an international connecting flight which we would’ve missed but AA manage to find us a flight that allowed us to catch and we made our international flight. However, due to the flight change, I’m in Amman, Jordan missing all 4 bags. It’s been a nightmare. Been waiting since June 17 and today is June 20th. Still without luggage. Customer service wait times are two hours and I get disconnected while waiting. I’ll update when/if my luggage arrives. Every day is costing money in a hotel in Amman. I can’t continue my trip to Palestine until the luggage arrives. Then, I will be updating my review.

They did not offer coffee on a 7am flight…awful!!

Plane temperature was so hot that everyone on the plane was sweating. Departure gates changed 3 times in the hour before the flight. Internet service was so poor in the terminal that updates weren't always being received.

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

Check in for 5am flight at RDU was hampered by American check in counters being seriously understaffed , was told even supervisor called out. Took so long in line for special services check in that we missed our 5am departure even after arriving at 3:30am. Had to be rescheduled to later flight from Charlotte to St Thomas.

Delayed flight due to maintenance and I have had multiple delayed flights due to maintenance in the last month plus

Excellent service. Flight attendance like Jessica,, on our flight, is a reason I wouldn’t mind flying through British Airways again. Jessica,, was very courteous and helpful.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

Significant delays on my trip to Chicago and my trip back to NY

Terrible boarding and first class experience. Nice staff but overall disorganized, dirty plane.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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