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Cheap flights from Birmingham to Seattle from £401

BHX — SEA
13 Oct — 20 Oct1
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

Thu 8/1008:10 -
1 stop17h 00m
Wed 21/1019:10 -
1 stop15h 00m
Deal found 12/9£486
Thu 24/908:10 -
1 stop17h 00m
Wed 7/1019:10 -
1 stop16h 45m
Deal found 12/9£486
Thu 8/1008:10 -
1 stop17h 00m
Thu 15/1019:10 -
1 stop16h 45m
Deal found 10/9£487
Thu 24/906:00 -
2 stops25h 20m
Wed 7/1018:40 -
1 stop15h 10m
Deal found 12/9£528
Mon 12/1014:30 -
1 stop28h 50m
Sat 31/1015:25 -
1 stop34h 10m
Deal found 12/9£533
Thu 8/1005:55 -
1 stop13h 57m
Thu 15/1009:45 -
2 stops19h 55m
Deal found 8/9£534
Thu 8/1009:20 -
2 stops19h 07m
Wed 21/1014:30 -
2 stops19h 20m
Deal found 12/9£538
Mon 12/1018:40 -
1 stop31h 07m
Sat 31/1017:29 -
2 stops40h 21m
Deal found 12/9£541
Tue 15/1209:25 -
2 stops20h 35m
Fri 25/1210:35 -
2 stops22h 10m
Deal found 10/9£543

Find flight deals from Birmingham to Seattle

Round-trip from

£486

One-way from

£401

Popular in

August

Cheapest in

April

Average price

£715
Aer Lingus
  • Aer Lingus
  • 8/10-21/10
  • 2 total stops
  • 32h 00m total
  • Birmingham to Seattle
Search Deals
5/10-31/12
  • 5/10-31/12
  • 3 total stops
  • 29h 15m total
  • Birmingham to Seattle
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£123 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
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 Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Mon 5/10

21:30-18:45

3 stops29h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£401

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Sat 3/10

07:45-20:40

3 stops44h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£458

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Thu 8/10

05:55-11:52

1 stop13h 57m

Seattle/Tacoma Intl

Thu 15/10

09:45-13:40

2 stops19h 55m

£534

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Thu 8/10

09:20-20:27

2 stops19h 07m

Seattle/Tacoma Intl

Wed 21/10

14:30-17:50

2 stops19h 20m

£538

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Wed 14/10

08:10-17:10

1 stop17h 00m

Seattle/Tacoma Intl

Sun 18/10

19:10-07:40

1 stop28h 30m

£557
Fastest return journey

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Fri 18/9

19:15-13:45

1 stop26h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£2,712

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Sorted by cheapest first

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

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 £374). Flying from Birmingham to Seattle in August is currently the most expensive (average of £846). 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?

Airfare is below average for this route at the moment.

Birmingham to Seattle flights typically cost between £574 and £793 in October.
The cheapest return price found within the last 5 days was £486 on Aer Lingus (8 Oct–21 Oct).

Reviews of airlines servicing Seattle

Check out reviews from past customers who have flown with Aer Lingus,Lufthansa, andBritish Airways 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.
Aer Lingus
7.3
Good
1,758 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Aer Lingus
7.3
Good
1,758 reviews
Aer Lingus
7.3
Good
1,758 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Lufthansa
6.8
Okay
8,220 reviews
Aer Lingus
7.3
Good
1,758 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
British Airways
6.7
Okay
8,215 reviews
Aer Lingus
7.3
Good
1,758 reviews
Check prices

Entertainment

7.0

Crew

8.1

Overall

7.3

Food

6.7

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

Related info for your journey

  • How long is the flight from Birmingham to Seattle?

    A quick flight from Birmingham to Seattle can take about 13h 57m. Delta provides one of the quickest options available for as low as £534. The distance between Birmingham and Seattle is about 4695 mi.

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

    According to our current data, British Airways (£360), Lufthansa (£388), and Aer Lingus (£515) 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 £374). Flying from Birmingham to Seattle in August is currently the most expensive (average of £846). 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
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Birmingham to Seattle

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£360Average£386FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£388Average£410FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£515Average£758FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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.

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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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