Cheap flights from Birmingham to Seattle from £301
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Birmingham to Seattle/Tacoma Intl are usually found in March or November, booked 78 days in advance, depart on a Wednesday or Monday and return on a Monday
Cheap flight deals from Birmingham to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Birmingham (BHX) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 July 2025.
Find flight deals from Birmingham to Seattle
Cheapest flights from Birmingham to SeattleExplore the most affordable flight options available from Birmingham to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Explore the most affordable flight options available from Birmingham to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Birmingham to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 July 2025.
Use the filters below to find and compare flights from Birmingham to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Mon 25/8
20:15-11:35
1 stop23h 20m
Seattle/Tacoma Intl
Tue 9/9
13:30-17:50
1 stop20h 20m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Mon 25/8
06:00-19:00
2 stops21h 00m
Seattle/Tacoma Intl
Tue 9/9
09:53-13:40
2 stops19h 47m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Sun 17/8
06:55-20:28
2 stops21h 33m
Seattle/Tacoma Intl
Sun 24/8
19:35-08:30
1 stop28h 55m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Mon 11/8
08:10-17:50
1 stop17h 40m
Seattle/Tacoma Intl
Tue 26/8
19:35-19:45
1 stop16h 10m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Mon 11/8
08:10-17:50
1 stop17h 40m
Seattle/Tacoma Intl
Tue 26/8
13:32-19:45
2 stops22h 13m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Thu 14/8
19:10-13:50
1 stop26h 40m
Seattle/Tacoma Intl
Mon 25/8
16:00-18:35
1 stop18h 35m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Sun 17/8
16:40-17:50
1 stop33h 10m
Seattle/Tacoma Intl
Sun 24/8
19:35-19:45
1 stop16h 10m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Sun 17/8
17:35-11:35
1 stop26h 00m
Seattle/Tacoma Intl
Sun 24/8
17:40-16:50
1 stop15h 10m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Sun 17/8
05:55-23:59
2 stops26h 04m
Seattle/Tacoma Intl
Sun 24/8
23:54-08:40
2 stops24h 46m
BirminghamSeattle
BHX - SEA
BHXSEA
Birmingham
Mon 11/8
05:55-22:59
2 stops25h 04m
Seattle/Tacoma Intl
Tue 26/8
07:10-12:15
3 stops21h 05m
Best time to book a flight from Birmingham to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Birmingham with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Birmingham to Seattle
How far ahead should I book a flight from Birmingham to Seattle?
Use this chart to determine the optimal time to book a return flight from Birmingham to Seattle. Price data was last updated on 27 June 2025.
The best time to book flights from Birmingham to Seattle is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Birmingham to Seattle?
Currently, January is the cheapest month in which you can book a flight from Birmingham to Seattle (average of £622). Flying from Birmingham to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BHX to SEA?
Find hourly flight availability from Birmingham to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.
One of the essential ways to save on airfare from Birmingham to Seattle is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 12% on airfare.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 4 July 2025.
Check out reviews from past customers who have flown with Delta, KLM, andFinnair from Birmingham to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Food
Comfort
Boarding
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Comfort
Boarding
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Comfort
Boarding
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Comfort
Boarding
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Comfort
Boarding
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Overall
Food
Comfort
Boarding
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Birmingham to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Birmingham to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Birmingham to Seattle
Discover the top 6 airlines that operate flights from Birmingham to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 July 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Birmingham to Seattle?
Cheapflights helps you search for flights from Birmingham to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Birmingham to Seattle?
Cheapflights helps you find that perfect flight to Seattle from Birmingham by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Birmingham to Seattle with no change fees?
Certainly. Search results for flights to Seattle from Birmingham shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Birmingham to Seattle become cheaper?
Yes! Start tracking prices for Birmingham to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.