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$438+ Cheap flights from Birmingham (BHX) to Seattle (SEA)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BHX — SEA
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Birmingham to Seattle/Tacoma Intl are usually found in November or March, booked 79 days in advance, depart on a Tuesday or Monday and return on a Sunday

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 July 29, 2025.

Round-trip from

$641
(Trip.com)

One-way from

$438
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,360
From Birmingham to Seattle/Tacoma Intl
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One-way flight from Birmingham to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 17% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Birmingham to Seattle

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 July 29, 2025.

This Trip.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/58:15 pmBHX - SEA
1 stop29h 35mAer Lingus
Sun 9/217:35 pmSEA - BHX
1 stop16h 10mAer Lingus
Deal found 7/29$641
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:55 amBHX - SEA
1 stop19h 55mMultiple Airlines
Thu 9/187:35 pmSEA - BHX
1 stop14h 45mMultiple Airlines
Deal found 7/29$653
This TravelUp deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:15 pmBHX - SEA
1 stop27h 50mVirgin Atlantic
Sun 9/1410:05 pmSEA - BHX
2 stops40h 05mVirgin Atlantic
Deal found 7/27$852
This Booking.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:55 amBHX - SEA
2 stops21h 36mAir Canada
Sun 9/217:15 pmSEA - BHX
2 stops38h 00mAir Canada
Deal found 7/29$867
This Gotogate deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:55 amBHX - SEA
1 stop14h 00mLufthansa
Sun 9/216:50 pmSEA - BHX
1 stop13h 55mLufthansa
Deal found 7/29$887
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:55 amBHX - SEA
2 stops16h 21mUnited Airlines
Fri 9/1910:55 pmSEA - BHX
2 stops29h 20mUnited Airlines
Deal found 7/29$926
This Vliegwinkel deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:10 pmBHX - SEA
1 stop25h 25mTurkish Airlines
Fri 9/197:10 pmSEA - BHX
1 stop33h 00mTurkish Airlines
Deal found 7/29$946
This Trip.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/87:15 pmBHX - SEA
1 stop26h 35mScandinavian Airlines
Mon 8/254:00 pmSEA - BHX
1 stop18h 35mScandinavian Airlines
Deal found 7/28$1,045
This ChecknFly deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/86:50 pmBHX - SEA
2 stops31h 46mSWISS
Mon 8/254:25 pmSEA - BHX
1 stop31h 25mSWISS
Deal found 7/28$1,091

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Birmingham to Seattle that are best for you.

Fly from

Birmingham

Fly to

Seattle

Route

Depart

Return

Price

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 9/5

8:15 pm-5:50 pm

1 stop29h 35m

Seattle/Tacoma Intl

Sun 9/21

7:35 pm-7:45 pm

1 stop16h 10m

$641

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Thu 9/11

5:55 am-5:50 pm

1 stop19h 55m

Seattle/Tacoma Intl

Thu 9/18

7:35 pm-6:20 pm

1 stop14h 45m

$653

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Mon 9/8

8:15 pm-4:05 pm

1 stop27h 50m

Seattle/Tacoma Intl

Sun 9/14

10:05 pm-10:10 pm

2 stops40h 05m

$852

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 9/5

5:55 am-7:31 pm

2 stops21h 36m

Seattle/Tacoma Intl

Sun 9/21

7:15 pm-5:15 pm

2 stops38h 00m

$867

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 9/5

5:55 am-11:55 am

1 stop14h 00m

Seattle/Tacoma Intl

Sun 9/21

6:50 pm-4:45 pm

1 stop13h 55m

$887

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 9/12

5:55 am-2:16 pm

2 stops16h 21m

Seattle/Tacoma Intl

Fri 9/19

10:55 pm-12:15 pm

2 stops29h 20m

$926

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 9/12

5:10 pm-10:35 am

1 stop25h 25m

Seattle/Tacoma Intl

Fri 9/19

7:10 pm-12:10 pm

1 stop33h 00m

$946

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 8/8

7:15 pm-1:50 pm

1 stop26h 35m

Seattle/Tacoma Intl

Mon 8/25

4:00 pm-6:35 pm

1 stop18h 35m

$1,045

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 8/8

6:50 pm-6:36 pm

2 stops31h 46m

Seattle/Tacoma Intl

Mon 8/25

4:25 pm-7:50 am

1 stop31h 25m

$1,091

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Tue 9/2

7:55 am-7:14 pm

3 stops43h 19m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 13 results
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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 round-trip 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

How far ahead should I book a flight from Birmingham to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Birmingham to Seattle. Price data was last updated on July 25, 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 $238). Flying from Birmingham to Seattle in June is currently the most expensive (average of $389). 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.

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 July 29, 2025.
Read through reviews of airlines operating flights from Birmingham to Seattle, such as SWISS, United Airlines, and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,683 reviews

Crew

8.2

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
SWISS
7.5
Good
1,683 reviews
SWISS
7.5
Good
1,683 reviews

Crew

8.2

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
United Airlines
7.4
Good
8,899 reviews
SWISS
7.5
Good
1,683 reviews

Crew

8.2

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Virgin Atlantic
7.4
Good
655 reviews
SWISS
7.5
Good
1,683 reviews

Crew

8.2

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Turkish Airlines
7.3
Good
3,925 reviews
SWISS
7.5
Good
1,683 reviews

Crew

8.2

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.
Scandinavian Airlines
7.3
Good
1,449 reviews
SWISS
7.5
Good
1,683 reviews

Crew

8.2

Boarding

7.7

Entertainment

6.8

Comfort

7.4

Food

7.1

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Jeff,Feb 2025

BER - ZRH

Ground and flight crew are lazy. No food. Late. Ryanair is better.

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.

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

    Aer Lingus, at $641, was found to be the cheapest airline from Birmingham to Seattle.Alternate airlines to your destination round-trip include Virgin Atlantic and Air Canada. Aer Lingus is priced at 30% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Birmingham to Seattle one-way?

    The cheapest airlines for a one-way flight from Birmingham to Seattle are Aer Lingus ($649), Lufthansa ($887), and Turkish Airlines ($983).

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Birmingham to Seattle (average of $238). Flying from Birmingham to Seattle in June is currently the most expensive (average of $389). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
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Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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