BDL - SEA

$107 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 12/17. 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

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
$213
Typical prices: $481-$636
Delta
Tue 3/3Wed 3/4
BDL - SEA • 1 stop
Cheapest one-way
$107
Typical prices: $268-$467
Delta
Wed 12/17
BDL - SEA • 1 stop
Video guide: How to find cheap flights to Seattle
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Top airlines
Delta
Cheapest • from $213 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
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+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 16% price drop
June
Most popular
Good to know
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+1
+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

Tue, Mar 3 - Wed, Mar 4
Delta Logo
5:40 am - 10:45 amBDL-SEA
8h 05m1 stop
Delta Logo
6:00 am - 3:58 pmSEA-BDL
6h 58m1 stop
$213Delta
Find Deal
Thu, Dec 4 - Sat, Dec 6
Delta Logo
6:09 am - 12:58 pmBDL-SEA
9h 49m1 stop
Delta Logo
1:47 pm - 11:56 pmSEA-BDL
7h 09m1 stop
$227Delta
Find Deal
Sat, Feb 14 - Thu, Feb 19
United Airlines Logo
4:43 pm - 10:43 pmBDL-SEA
9h 00m1 stop
United Airlines Logo
11:59 pm - 10:33 amSEA-BDL
7h 34m1 stop
$241United Airlines
Find Deal
Fri, Jan 9 - Sat, Jan 17
American Airlines Logo
7:00 am - 10:20 pmBDL-SEA
18h 20m1 stop
American Airlines Logo
7:00 am - 7:59 pmSEA-BDL
9h 59m1 stop
$251American Airlines
Find Deal
Fri, Jan 9 - Sat, Jan 17
American Airlines Logo
12:16 pm - 10:20 pmBDL-SEA
13h 04m1 stop
American Airlines Logo
7:00 am - 9:18 pmSEA-BDL
11h 18m2 stops
$256American Airlines
Find Deal
Sat, Feb 14 - Thu, Feb 19
United Airlines Logo
4:43 pm - 10:43 pmBDL-SEA
9h 00m1 stop
United Airlines Logo
7:10 pm - 9:34 amSEA-BDL
11h 24m2 stops
$283United Airlines
Find Deal
Sat, Feb 14 - Thu, Feb 19
Southwest Logo
2:00 pm - 11:55 pmBDL-SEA
12h 55m2 stops
Southwest Logo
6:35 am - 9:10 pmSEA-BDL
11h 35m1 stop
$316Southwest
Find Deal
Thu, Nov 20 - Mon, Dec 15
Multiple Airlines Logo
8:27 pm - 1:22 pmBDL-SEA
43h 55m2 stops
Multiple Airlines Logo
11:01 am - 8:06 pmSEA-BDL
30h 05m1 stop
$335Multiple Airlines
Find Deal
Sat, Nov 22 - Mon, Dec 1
Multiple Airlines Logo
8:27 pm - 1:22 pmBDL-SEA
43h 55m2 stops
Multiple Airlines Logo
9:53 pm - 8:06 pmSEA-BDL
19h 13m1 stop
$352Multiple Airlines
Find Deal
Thu, Jan 1 - Wed, Jan 7
Southwest Logo
5:15 am - 1:25 pmBDL-SEA
11h 10m1 stop
Southwest Logo
6:45 am - 4:20 pmSEA-BDL
6h 35m1 stop
$386Southwest
Find Deal
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.

How much is a round-trip flight from Hartford to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Hartford to Seattle departing in March.

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

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

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

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 $462 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $668 and $597 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 5 weeks before departure, which saves you about 40% 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$107
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 5% 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 $107 for a one-way ticket and $213 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 $592 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 4237 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

10.0 ExcellentStacy, Oct 2025SMF - DEN
Read more Southwest reviews

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

mandatory demand customer to check their carry on because not enough people check bags.

Connecting flight is on time and boarding was a breeze!

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

As always, the entire Southwest experience was perfect. Purchasing the tickets on the Southwest web site was effortless, departure and arrival gates were spotless and comfortable, plane was clean and comfortable, crew was excellent and flight was on time. Wheelchair service in Las Vegas at departure was somewhat chaotic and disjointed, but I am not sure if that was Southwest problem, airport problem or combination.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Typically flights with AA are good. The staff are pleasant, welcoming, and efficient.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

Flight attendants on this flight were very attentive and friendly

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

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

Multiple delays because they screwed up on the crew schedule and had to wait for over an hour for more people to come.

It was good. Basic flight. Drinks only. Pay budget. Get budget and I’m good with that. I want to get where I need to go. Not hard to please. Female First Officer is an absolute bonus for me!

The Wi-Fi was off, the arm rests are hard plastic.

The assistance with the wheel chairs was fabulous. All the people were so very friendly and helpful. I want to thank them all.

We almost missed our return flight. We got to the gate one minute from closing the cabin door, and the agent got us aboard the plane! We are so very grateful!!!!!

I already filled out a survey for this flight. We booked through KAYAK with airfare assist, and airfare assist did not confirm or honor our flight. Therefore, we had to go to a different place with a different travel agency. I tried very hard with airfare assist, They also promoted this on cheapair.com, but it was a bait and switch in both instances.

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

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