BDL - SEA

$140 Find Cheap Flights from Hartford to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Hartford to Seattle departing on 2/28. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hartford to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Hartford to Seattle.
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Everything you should know

Cheapest round-trip
$337
Overall average: $569
Sun Country Air
Sun 7/5Wed 7/15
BDL - SEA • 1 stop
Cheapest one-way
$140
Typical prices: $216-$364
Multiple Airlines
Sat 2/28
BDL - SEA • 2 stops
Video guide: How to find cheap flights to Seattle
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Top airlines
American Airlines
Cheapest • from $365 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 15% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Hartford to Seattle (BDL-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Hartford to Seattle 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 Hartford to Seattle

Sun, Jul 5 - Wed, Jul 15
Sun Country Air Logo
11:46 am - 10:46 pm
BDL
-
SEA
14h 00m
1 stop
Sun Country Air Logo
6:09 pm - 12:41 pm
SEA
-
BDL
15h 32m
1 stop
$337Sun Country Air
Fri, Jul 3 - Wed, Jul 15
Sun Country Air Logo
11:52 am - 10:46 pm
BDL
-
SEA
13h 54m
1 stop
Sun Country Air Logo
6:09 pm - 12:41 pm
SEA
-
BDL
15h 32m
1 stop
$340Sun Country Air
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
4:43 pm - 10:43 pm
BDL
-
SEA
9h 00m
1 stop
United Airlines Logo
10:55 am - 9:06 pm
SEA
-
BDL
7h 11m
1 stop
$365United Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
4:43 pm - 10:43 pm
BDL
-
SEA
9h 00m
1 stop
United Airlines Logo
7:29 pm - 9:34 am
SEA
-
BDL
11h 05m
2 stops
$370United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
3:00 pm - 10:43 pm
BDL
-
SEA
10h 43m
2 stops
United Airlines Logo
10:55 am - 11:59 pm
SEA
-
BDL
10h 04m
2 stops
$376United Airlines
Mon, Jun 15 - Sat, Jun 20
Sun Country Air Logo
7:06 pm - 11:07 am
BDL
-
SEA
19h 01m
1 stop
Sun Country Air Logo
6:24 pm - 10:47 am
SEA
-
BDL
13h 23m
1 stop
$380Sun Country Air
Thu, May 14 - Tue, May 19
United Airlines Logo
12:58 pm - 7:00 pm
BDL
-
SEA
9h 02m
1 stop
United Airlines Logo
11:00 pm - 9:47 am
SEA
-
BDL
7h 47m
1 stop
$384United Airlines
Thu, Apr 30 - Sun, May 3
United Airlines Logo
6:15 am - 2:35 pm
BDL
-
SEA
11h 20m
2 stops
United Airlines Logo
11:00 pm - 9:47 am
SEA
-
BDL
7h 47m
1 stop
$390United Airlines
Thu, Mar 5 - Wed, Mar 11
American Airlines Logo
6:53 am - 12:47 pm
BDL
-
SEA
8h 54m
1 stop
American Airlines Logo
7:21 am - 7:52 pm
SEA
-
BDL
9h 31m
2 stops
$392American Airlines
Sat, Apr 11 - Thu, Apr 16
American Airlines Logo
6:00 am - 11:34 am
BDL
-
SEA
8h 34m
1 stop
American Airlines Logo
10:47 pm - 10:12 am
SEA
-
BDL
8h 25m
1 stop
$399American Airlines
Booking Insights

KAYAK's insights & trends for Hartford to Seattle flights

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

Find cheap flights to Seattle
Find cheap flights to Seattle

Planning a trip from Hartford to Seattle? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What is the cheapest month to fly from Hartford to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hartford to Seattle, 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 Hartford to Seattle is September, where tickets cost $460 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $597 and $579 respectively.

How far in advance should I book a flight from Hartford to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Hartford to Seattle, 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 Hartford to Seattle, you should book around 3 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$140
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Hartford to Seattle

When to book flights from Hartford to Seattle

Are your dates flexible? Find out the best times to travel from Hartford to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Hartford to Seattle

  • Are there nursing rooms at BDL Airport?

    Yes. It is located at the post security. Here, you can freely breastfeed your baby. There is a lot of privacy and little interference. Comfortable seats are available to ensure you do not get tired as you breastfeed. You can pump milk for your baby too.

  • Are they kid friendly facilities at BDL Airport?

    Yes. There is a kids’ playground at the international terminal. Here, your kids can have a good time as they wait for the departure time of their flight. It enhances socialization among your kids and the others. You also have a place to sit as you watch over your kids.

  • Does SEA Airport offer services to business travelers?

    Yes. There is a conference center where you can hold meetings. The room is big enough to accommodate many people. This enables you proceed with you business activities on your arrival at the airport. The center is usually open from Monday to Friday from 7:30 am to 5 pm.

  • Are pets allowed at SEA Airport?

    Yes. There is a pet relief area. This service is of relevance to your pet. You can carry your furry friend so as to company on your arrival. They pet relief area is located near the parking garage. You can walk around with your pet.

  • What is the cheapest flight from Hartford to Seattle?

    In the last 3 days, the lowest price for a flight from Hartford to Seattle was $140 for a one-way ticket and $295 for a round-trip.

  • Do I need a passport to fly between Hartford and Seattle?

    A passport is not required to fly from Hartford to Seattle.

  • Which airports will I be using when flying from Hartford to Seattle?

    Hartford airport is called Hartford Bradley Intl and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Hartford to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Hartford to Seattle?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Hartford and Seattle, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Seattle from Hartford?

    Chicago is the most popular layover city among KAYAK users traveling from Hartford to Seattle.

  • Which is the best airline for flights from Hartford to Seattle, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Hartford to Seattle are Southwest and Alaska Airlines. With an average price for the route of $608 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $711 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Hartford to Seattle?

    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 Hartford to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Hartford 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 Hartford to Seattle?

    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 to Seattle with an airline and back to Hartford with another airline. Booking your flights between Hartford and SEA can sometimes prove cheaper using this method.

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

    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 to Seattle from Hartford up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Hartford to Seattle

  • Bradley International Airport (BDL) offers parking facilities to the departing travelers. You have different parking options once you arrive at the airport. You can choose to Economy parking lot or the Express parking lot. Here, the safety and security of your car is assured. There is a charging station for those who have electric vehicles. There is a garage too when you can repair your car in case of any damage.
  • BDL Airport offers accessible services to travelers arriving at the airport. You are provided with a wheelchair that you can use to move around the airport. You only need to book for the service for it to be availed. There is an adapted toilet that you can easily use without falling down since you have a place to hold. There are ramps to ensure easy movement in the entire place using the wheelchair.
  • BDL Airport has lounges located within the airport. You can visit the lounges either by having a membership or through pay ass you visit. You can get all the drinks you need. Snacks are also available. You can relax as you wait for the departing time of your flight. The service is available to all the travelers regardless of the class of your flight.
  • Seattle Tacoma International Airport (SEA) offers car rental facilities to the arriving travelers. There are several car rental companies within the airport that offer the service. The companies include Fox, Hertz, National, Thrifty and Caro. You can book for a car prior to your day of arrival. This helps avoid inconveniences that might arise in case of late arrival. It also gives you the assurance of getting a means of transport while at the airport.
  • SEA Airport offers transport facilities to the arriving travelers. There are several bus companies that you can board. This is available at an affordable costs to all the arriving travelers regardless of the class of your flight. There is a taxi that takes a very short time to get to downtown. A light rail is located at the fourth floor and is very convenient.

Reviews of the top 5 airlines serving from Hartford to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Hartford to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hartford to Seattle? 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.
8.0
SouthwestOverall score based on 4258 reviews
7.0Food
8.0Comfort
8.1Boarding
7.5Entertainment
8.6Crew
Airline reviews

3 hour delay. Had to change plans and was still delayed.

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

We got exit row seats both flights. Everything was running on time

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

The seats weren’t reclining even though it wasn’t as exit seat

It was good because we traveled without luggage, carry on only.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

The entertainment screens were not working and there was no air condition the entire flight. Very uncomfortable.

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

We were upgraded to First Class and it was a great flight

Amazing I love American. I’ll never fly anyone else if I can help it.

I love American. I’ll never fly anyone else if I can help it.

Flight delay and multiple gate changes including a change near boarding time to another terminal, which in DFW is a pain. Pre-boarding delay and also a further delay on the ground after boarding. About an hour and a half total delay.

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

Little warm on the plane and delayed for an hour

Tell the crew (when boarding) to yell at the imbeciles blocking us from walking up to scan. I promise everyone crowds around and half of us (most the time I’m group 4) have to push our way through. Your staff is awesome, the public - not so much-

Bags took over and hour to come out. Delays due to wind caused rebooking.

The flight was good. We had to spend almost an hour on the tarmac when we arrived in Dallas. Waiting for a gate. What’s the point of arriving early if you have no gate to park at?

3 seperate extremely rude unhelpful staff. Delayed flight. Lost my bag

Sat between 2 big men. I was uncomfortable. Flight was delayed twice. About 2 hours altogether.

It was a good experience. I do wish the seats were roomier. Also, I did not like being charged for my carry on bag

Exceptional take off and landing in snow and wind…thank you to the well skilled pilots!

I liked entertainment system being downloaded on my iPad. The selections were limited but I appreciated being able to use my own screen. The flight was just fine. My only issue was both terminals being far from the main airport. Especially stoning at LAX near midnight and having to wait for a bus to take us to baggage pickup. Very inconvenient.

Just fine but comfort is always an issue since the seats are so close

The Flight was fine, the staff treated me well, the flight got delayed over 5 1/2 hours for maintenance issues....but it worked out OK,, they were very apologetic about it, and it is better to not fly if there is any issue than endanger peoples lives, so in reality that was a good thing, It did cost me extra for parking because I went beyond the time I had purchased for parking at MSP. But all in all, Good flight

I did not take this flight because the reservation made by Kayak was wrong! Kayak owes me a trip from Minneapolis to Duluth.

When I got to the airport in Seattle, they told me the flight "did not exist". Kayak reserved me a seat on a flight that did not exist. This is inexcusable. I was able to change my reservation to a flight that actually did exist, but the flight was later and then I didn't make it in time for the next leg of my trip from Minneapolis to Duluth. Kayak owes me a trip from Minneapolis to Duluth, and a big apology for messing up my reservation.

The plane was freezing cold. Asked for a blanket and there were none. Was told twice that the pilots would warm the plane and it never happened Worst experience flying ever

Everything you need to know for your flight from Hartford to Seattle

Information on your arrival and departure airports