£258 Cheap Flights from Hartford (BDL) to Seattle (SEA)

View £258 flight on Tue, 1 Sept 2026Opens in a new window

Popular airlines from Bradley Intl. Airport (BDL) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Hartford (BDL) to Seattle (SEA)

Prices were available within the past 7 days and start at £258 for one-way flights and £572 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£572 Return, found 5 days ago
£572
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £572 found 5 days ago
JetBlue Airways
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£586 Return, found 5 days ago
£586
Return
found 5 days ago
Select JetBlue Airways flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £586 found 5 days ago
Alaska Airlines
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£612 Return, found 5 days ago
£612
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £612 found 5 days ago
JetBlue Airways
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£624 Return, found 5 days ago
£624
Return
found 5 days ago
Select JetBlue Airways flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £624 found 5 days ago
Alaska Airlines
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£651 Return, found 5 days ago
£651
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £651 found 5 days ago
Alaska Airlines
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£652 Return, found 5 days ago
£652
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £652 found 5 days ago
JetBlue Airways
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£678 Return, found 5 days ago
£678
Return
found 5 days ago
Select JetBlue Airways flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £678 found 5 days ago
JetBlue Airways
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£691 Return, found 5 days ago
£691
Return
found 5 days ago
Select JetBlue Airways flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £691 found 5 days ago
Alaska Airlines
Sun, 7 Jun - Tue, 9 Jun
BDL
Hartford
SEA
Seattle
£693 Return, found 5 days ago
£693
Return
found 5 days ago
Select Alaska Airlines flight, departing Sun, 7 Jun from Hartford to Seattle, returning Tue, 9 Jun, priced at £693 found 5 days ago
JetBlue Airways
Thu, 3 Sept - Sun, 6 Sept
BDL
Hartford
SEA
Seattle
£717 Return, found 5 days ago
£717
Return
found 5 days ago
Select JetBlue Airways flight, departing Thu, 3 Sept from Hartford to Seattle, returning Sun, 6 Sept, priced at £717 found 5 days ago

Frequently asked questions

What is the cheapest month to fly from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
September is typically the cheapest month to fly from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average round-trip fares around 1015 CAD. This is about 20% lower than the average price throughout the year. September often sees lower prices as the summer travel rush ends and demand decreases. Other cheap months to fly from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include January and October.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Based on booking data from the past year, the cheapest months to fly from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are typically September and January, with average round-trip flights around 1015 CAD. However, the most popular months for this route are November and May, meaning you'll find plenty of flight options during those times. While there isn't a single month that is both the cheapest and most popular, if you prioritize savings, September and January are your best bet. If you prefer more flexibility with flight times and dates, November and May offer a high volume of flights.*Prices based on flights available on Expedia in the last year.
How many flights per day from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 53 connecting flights per day from Hartford, CT (BDL-Bradley Intl.) (BDL) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA). Some common connection points include O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), and Baltimore Washington Intl. Thurgood Marshall (BWI).
What is the earliest flight from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 5:00 AM local time. This service is operated by American Airlines and is seasonal, active in March and April. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Thursday, with around 42 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, Delta Air Lines, and United Airlines. Flight schedules are consistent throughout the week, so you'll find a good selection of flights regardless of the day you choose to fly.
What are the most popular departure times for flights from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the morning, from 6am to 9am. About 39% of passengers prefer this time. Many major carriers, including American Airlines, Delta Air Lines and United Airlines, offer flights during this window. This timing works well because you can get an early start to your travel day and arrive in Seattle with plenty of time to settle in.
How long does it take to fly from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A flight from BDL to SEA with a layover takes around 8 hours 50 minutes, with the route covering approximately 2,425 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for BDL to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Bradley Intl. (BDL)?
From Bradley Intl. (BDL), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Baltimore Washington Intl. Thurgood Marshall (BWI), Washington Dulles Intl. (IAD), Midway Intl. (MDW) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Hartford, CT (BDL-Bradley Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Bradley Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
£572
Distance
3879 km

Book with confidence

Compare flights from Hartford to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Hartford to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Bradley Intl. to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Bradley Intl. (BDL) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Hartford to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Bradley Intl. to Seattle - Tacoma Intl. start at just £572 and range up to £717.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Hartford and Seattle
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Hartford to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Bradley Intl. to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Hartford to Seattle easily and book with confidence

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*Available to Expedia members.