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Cheap flights from Birmingham to Seattle from £345

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
BHX — SEA
13 Jul — 20 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Birmingham to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Birmingham to Seattle
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 13 June 2026.

Fri 17/712:20
BHX
-
SEA
1 stop12h 50m
Aer Lingus
Tue 28/719:10
SEA
-
BHX
1 stop12h 55m
Aer Lingus
Deal found 11/6£476
Sat 25/708:10
BHX
-
SEA
1 stop17h 00m
Aer Lingus
Sat 1/819:10
SEA
-
BHX
1 stop17h 55m
Aer Lingus
Deal found 13/6£479
Mon 31/812:20
BHX
-
SEA
1 stop12h 50m
Aer Lingus
Mon 21/919:10
SEA
-
BHX
1 stop12h 55m
Aer Lingus
Deal found 10/6£481
Thu 9/712:20
BHX
-
SEA
1 stop12h 50m
Aer Lingus
Sun 19/719:10
SEA
-
BHX
1 stop12h 55m
Aer Lingus
Deal found 13/6£482
Mon 31/820:15
BHX
-
SEA
1 stop23h 32m
KLM
Wed 9/1209:30
SEA
-
BHX
2 stops19h 20m
KLM
Deal found 11/6£538
Mon 31/820:15
BHX
-
SEA
1 stop23h 32m
Virgin Atlantic
Wed 9/1214:05
SEA
-
BHX
1 stop23h 10m
Virgin Atlantic
Deal found 11/6£541
Fri 10/706:00
BHX
-
SEA
1 stop13h 15m
Multiple Airlines
Fri 17/713:45
SEA
-
BHX
1 stop19h 05m
Multiple Airlines
Deal found 12/6£547
Mon 2/1106:10
BHX
-
SEA
1 stop13h 50m
Lufthansa
Thu 5/1114:00
SEA
-
BHX
1 stop14h 35m
Lufthansa
Deal found 10/6£550
Mon 31/805:55
BHX
-
SEA
2 stops18h 59m
Delta
Mon 21/910:45
SEA
-
BHX
2 stops22h 05m
Delta
Deal found 10/6£551

Find 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 13 June 2026.

Round-trip from

£474

One-way from

£345

Popular in

August

Cheapest in

April

Average price

£780
Aer Lingus
  • Aer Lingus
  • 23/7-9/8
  • 2 total stops
  • 32h 55m total
  • Birmingham to Seattle
Search Deals
29/8
  • 29/8
  • 3 total stops
  • 51h 30m total
  • Birmingham to Seattle
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£106 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 13 June 2026.
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

Cheapest return flight

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Mon 31/8

20:15-11:47

1 stop23h 32m

Seattle/Tacoma Intl

Wed 9/12

14:05-21:15

1 stop23h 10m

£541

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Mon 31/8

20:15-16:37

2 stops28h 22m

Seattle/Tacoma Intl

Wed 9/12

09:30-12:50

2 stops19h 20m

£542
Fastest return journey

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 10/10

12:20-17:10

1 stop12h 50m

Seattle/Tacoma Intl

Tue 13/10

19:10-16:05

1 stop12h 55m

£556

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Wed 14/10

12:20-17:10

1 stop12h 50m

Seattle/Tacoma Intl

Sun 18/10

19:10-18:10

1 stop15h 00m

£556

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Mon 2/11

06:00-16:58

2 stops18h 58m

Seattle/Tacoma Intl

Sun 8/11

14:05-09:30

1 stop35h 25m

£570
Cheapest one-way
Fastest single journey

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 29/8

12:20-17:10

1 stop12h 50m

£410

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 29/8

23:15-18:45

2 stops27h 30m

£424

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Tue 30/6

23:10-21:00

2 stops29h 50m

£471

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Mon 29/6

21:30-18:45

2 stops29h 15m

£497

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sun 19/7

08:10-17:10

1 stop17h 00m

£513

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Birmingham to Seattle

What is the cheapest month to book a flight from Birmingham to Seattle?

Currently, April is the cheapest month in which you can book a flight from Birmingham to Seattle (average of £379). Flying from Birmingham to Seattle in August is currently the most expensive (average of £854). 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.

How much does it cost for a return flight from Birmingham to Seattle?

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 13 June 2026.
Check out reviews from past customers who have flown with KLM,Virgin Atlantic, andAer Lingus 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.
KLM
7.8
Good
1,527 reviews
Check prices

Boarding

7.8

Overall

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,527 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Boarding

7.8

Overall

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.5
Good
689 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Boarding

7.8

Overall

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Aer Lingus
7.3
Good
1,603 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Boarding

7.8

Overall

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Lufthansa
6.8
Okay
8,057 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Boarding

7.8

Overall

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,047 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Boarding

7.8

Overall

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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.

  • How long is the flight from Birmingham to Seattle?

    A quick flight from Birmingham to Seattle can take about 12h 50m. Virgin Atlantic provides one of the quickest options available for as low as £556. The distance between Birmingham and Seattle is about 4695 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Birmingham to Seattle round-trip?

    According to our current data, British Airways (£363), KLM (£374), and Lufthansa (£391) offers the cheapest pricing from Birmingham to Seattle. Users have found that British Airways is 41% cheaper than the other options available to this destination.

  • Can I find deals for flights from Birmingham to Seattle that include hotel bookings?

    Yes. In addition to deals on Birmingham to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Birmingham to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Birmingham to Seattle.

  • Can I find deals for business class flights from Birmingham to Seattle?

    Yes. Cheapflights offers flight deals from Birmingham to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Birmingham to Seattle?

    Currently, April is the cheapest month in which you can book a flight from Birmingham to Seattle (average of £379). Flying from Birmingham to Seattle in August is currently the most expensive (average of £854). 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.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Birmingham to Seattle

Discover the top 5 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 13 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£363Average£385FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£374Average£589FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£391Average£440FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£530Average£773FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£557Average£696FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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.

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