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Cheap flights from Birmingham to Seattle from £304

BHX — SEA
2 Oct — 9 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

Tue 13/1008:10 -
1 stop17h 00m
Tue 20/1019:10 -
1 stop15h 00m
Deal found 1/9£483
Wed 16/908:10 -
1 stop17h 00m
Wed 23/919:10 -
1 stop16h 45m
Deal found 1/9£488
Wed 16/908:10 -
1 stop17h 00m
Wed 23/919:10 -
1 stop16h 45m
Deal found 1/9£489
Tue 13/1012:20 -
1 stop12h 50m
Tue 20/1019:10 -
1 stop12h 55m
Deal found 29/8£519
Wed 14/1005:55 -
1 stop18h 40m
Wed 21/1018:40 -
1 stop15h 10m
Deal found 31/8£534
Tue 13/1005:55 -
1 stop18h 40m
Tue 20/1009:45 -
2 stops19h 55m
Deal found 1/9£534
Tue 13/1005:55 -
1 stop13h 57m
Tue 20/1009:45 -
2 stops18h 55m
Deal found 30/8£536

Find flight deals from Birmingham to Seattle

Round-trip from

£483

One-way from

£304

Popular in

August

Cheapest in

April

Average price

£715
Aer Lingus
  • Aer Lingus
  • 13/10-20/10
  • 2 total stops
  • 32h 00m total
  • Birmingham to Seattle
Search Deals
23/11
  • 23/11
  • 2 total stops
  • 55h 30m total
  • Birmingham to Seattle
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£125 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

Wed 16/9

08:10-17:10

1 stop17h 00m

Seattle/Tacoma Intl

Wed 23/9

19:10-19:55

1 stop16h 45m

£488

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Wed 14/10

05:55-16:35

1 stop18h 40m

Seattle/Tacoma Intl

Wed 21/10

18:40-17:50

1 stop15h 10m

£534

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Tue 13/10

05:55-16:35

1 stop18h 40m

Seattle/Tacoma Intl

Tue 20/10

09:45-13:40

2 stops19h 55m

£534

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Wed 14/10

18:40-17:10

1 stop30h 30m

Seattle/Tacoma Intl

Sun 18/10

19:10-11:50

1 stop32h 40m

£567
Fastest return journey

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Wed 14/10

06:05-12:20

1 stop14h 15m

Seattle/Tacoma Intl

Sun 18/10

14:10-17:25

1 stop19h 15m

£586

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Mon 12/10

05:55-15:33

2 stops41h 38m

Seattle/Tacoma Intl

Mon 19/10

07:00-17:25

2 stops26h 25m

£610

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Wed 14/10

19:15-23:04

2 stops35h 49m

Seattle/Tacoma Intl

Sun 18/10

07:16-18:35

2 stops27h 19m

£726
Cheapest one-way

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Mon 23/11

14:10-13:40

2 stops55h 30m

£304

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Fri 16/10

10:30-12:20

1 stop33h 50m

£463

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Sat 19/9

08:10-17:10

1 stop17h 00m

£517

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 17 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

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 £375). 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 £573 and £793 in October.
The cheapest return price found within the last 5 days was £483 on Aer Lingus (13 Oct–20 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
1,739 reviews
Check prices

Entertainment

7.0

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Overall

7.3

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
1,739 reviews
Aer Lingus
7.3
Good
1,739 reviews
Check prices

Entertainment

7.0

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Overall

7.3

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
8,232 reviews
Aer Lingus
7.3
Good
1,739 reviews
Check prices

Entertainment

7.0

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Overall

7.3

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
8,195 reviews
Aer Lingus
7.3
Good
1,739 reviews
Check prices

Entertainment

7.0

Boarding

7.5

Comfort

7.2

Crew

8.1

Food

6.7

Overall

7.3

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 17h. Aer Lingus provides one of the quickest options available for as low as £488. 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 (£359), 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 £375). 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£359Average£386FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£388Average£417FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£515Average£755FlexibilityNo 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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