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Cheap flights from Birmingham to Seattle from £366

BHX — SEA
3 Nov — 10 Nov1
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

Sun 15/1106:20 -
2 stops22h 39m
Sun 22/1107:45 -
2 stops21h 35m
Deal found 1/10£625
Mon 23/1106:00 -
1 stop13h 47m
Mon 30/1115:25 -
1 stop18h 15m
Deal found 2/10£643
Thu 12/1106:00 -
1 stop13h 47m
Sat 5/1209:50 -
2 stops19h 45m
Deal found 30/9£661
Sat 28/1106:15 -
2 stops18h 38m
Sat 5/1210:39 -
2 stops18h 56m
Deal found 1/10£664
Thu 19/1106:00 -
1 stop13h 47m
Thu 26/1114:35 -
1 stop14h 15m
Deal found 1/10£665
Wed 28/1009:25 -
2 stops17h 51m
Wed 4/1115:25 -
1 stop18h 15m
Deal found 30/9£666
Sun 15/1106:00 -
2 stops18h 53m
Sun 22/1109:25 -
2 stops20h 10m
Deal found 1/10£667
Thu 29/1006:00 -
2 stops21h 16m
Thu 5/1110:39 -
2 stops18h 56m
Deal found 1/10£668
Wed 28/1009:25 -
2 stops17h 51m
Wed 4/1115:25 -
1 stop18h 15m
Deal found 30/9£670

Find flight deals from Birmingham to Seattle

Round-trip from

£625

One-way from

£366

Popular in

August

Cheapest in

April

Average price

£585
15/11-22/11
  • 15/11-22/11
  • 4 total stops
  • 44h 14m total
  • Birmingham to Seattle
Search Deals
12/11-31/12
  • 12/11-31/12
  • 3 total stops
  • 49h 28m total
  • Birmingham to Seattle
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£111 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 October 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

Sun 15/11

16:30-15:55

3 stops31h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£455

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Fri 13/11

06:15-19:45

2 stops21h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£461

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Mon 16/11

06:00-12:00

1 stop14h 00m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£497
Fastest return journey

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Wed 11/11

06:05-12:00

1 stop13h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£497

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Sun 11/10

08:30-19:00

2 stops42h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£522

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Sun 11/10

21:35-17:10

1 stop27h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£531

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Sat 14/11

06:05-12:00

1 stop13h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£537

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Fri 13/11

17:45-12:00

1 stop26h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£553

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Thu 12/11

06:00-11:47

1 stop13h 47m

Seattle/Tacoma Intl

Sat 5/12

09:50-13:35

2 stops19h 45m

£661

BirminghamSeattle

BHX Birmingham - SEA Seattle/Tacoma Intl

BHXSEA

Birmingham

Wed 28/10

06:00-20:16

2 stops21h 16m

Seattle/Tacoma Intl

Wed 4/11

06:00-08:35

2 stops18h 35m

£670

Flights are sorted by cheapest return flights first.

Deals found on 2/10

Showing 1-10 of 20 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 £382). Flying from Birmingham to Seattle in August is currently the most expensive (average of £864). 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 typical for this route at the moment.

Birmingham to Seattle flights typically cost between £556 and £643 in November.
The cheapest return price found within the last 5 days was £625 on Multiple Airlines (15 Nov–22 Nov).

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
1,811 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Crew

8.1

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
1,811 reviews
Aer Lingus
7.3
Good
1,811 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Crew

8.1

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
8,256 reviews
Aer Lingus
7.3
Good
1,811 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Crew

8.1

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
8,244 reviews
Aer Lingus
7.3
Good
1,811 reviews
Check prices

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Crew

8.1

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 47m. Delta provides one of the quickest options available for as low as £661. 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 (£367), Lufthansa (£396), and Aer Lingus (£527) offers the cheapest pricing from Birmingham to Seattle. Users have found that British Airways is 40% 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 £382). Flying from Birmingham to Seattle in August is currently the most expensive (average of £864). 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£367Average£394FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£396Average£409FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£527Average£749FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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