$322+ Cheap flights from Seattle (SEA) to Billund (BLL)
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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Aug 23 — Aug 301
Round-trip
1 adult, Economy
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Cheapest flights from Seattle to BillundExplore the most affordable flight options available from Seattle to Billund. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
Explore the most affordable flight options available from Seattle to Billund. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
This KLM deal was found by Cheapflights users on 7/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:50 pm
SEA
- BLL
1 stop12h 10m
Multiple Airlines
Tue 8/2512:00 pm
BLL
- SEA
1 stop14h 34m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$612
This Cheapflightsfares deal was found by Cheapflights users on 7/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:55 pm
SEA
- BLL
1 stop14h 10m
Scandinavian Airlines
Sat 9/126:00 am
BLL
- SEA
1 stop16h 45m
Scandinavian Airlines
Deal found 7/22![Scandinavian Airlines logo]()
$613
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:50 pm
SEA
- BLL
1 stop16h 55m
Delta
Tue 8/2512:00 pm
BLL
- SEA
1 stop14h 34m
Delta
Deal found 7/21![Delta logo]()
$617
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:15 am
SEA
- BLL
2 stops18h 45m
Delta
Tue 8/256:40 am
BLL
- SEA
1 stop19h 54m
Delta
Deal found 7/20![Delta logo]()
$655
This Air France deal was found by Cheapflights users on 7/22. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:45 pm
SEA
- BLL
1 stop14h 45m
Air France
Wed 8/56:00 am
BLL
- SEA
1 stop14h 37m
Air France
Deal found 7/22![Air France logo]()
$677
This Sembo deal was found by Cheapflights users on 7/20. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:55 pm
SEA
- BLL
1 stop16h 50m
Scandinavian Airlines
Fri 8/219:05 pm
BLL
- SEA
1 stop25h 40m
Scandinavian Airlines
Deal found 7/20![Scandinavian Airlines logo]()
$696
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:15 am
SEA
- BLL
2 stops17h 20m
Delta
Sat 9/1211:40 am
BLL
- SEA
2 stops19h 23m
Delta
Deal found 7/22![Delta logo]()
$711
Best flights from Seattle to BillundDiscover carefully curated flight deals from Seattle to Billund that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
Discover carefully curated flight deals from Seattle to Billund that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
This KLM deal was found by Cheapflights users on 7/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:50 pm
SEA
- BLL
1 stop12h 10m
Multiple Airlines
Tue 8/2512:00 pm
BLL
- SEA
1 stop14h 34m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$612
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:50 pm
SEA
- BLL
1 stop16h 55m
Delta
Tue 8/2512:00 pm
BLL
- SEA
1 stop14h 34m
Delta
Deal found 7/21![Delta logo]()
$617
This Flightnetwork deal was found by Cheapflights users on 7/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:55 pm
SEA
- BLL
1 stop14h 10m
Scandinavian Airlines
Fri 8/217:40 pm
BLL
- SEA
2 stops27h 05m
Scandinavian Airlines
Deal found 7/20![Scandinavian Airlines logo]()
$705
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Wed 12/27:00 am
SEA
- BLL
2 stops17h 55m
United Airlines
Sun 12/66:35 am
BLL
- SEA
1 stop14h 25m
United Airlines
Deal found 7/18![United Airlines logo]()
$762
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:15 am
SEA
- BLL
2 stops18h 45m
Delta
Tue 8/256:40 am
BLL
- SEA
1 stop19h 54m
Delta
Deal found 7/20![Delta logo]()
$655
This Cheapflightsfares deal was found by Cheapflights users on 7/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:55 pm
SEA
- BLL
1 stop23h 00m
Scandinavian Airlines
Sat 8/156:00 am
BLL
- SEA
1 stop16h 45m
Scandinavian Airlines
Deal found 7/22![Scandinavian Airlines logo]()
$769
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated July 24, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 7/22. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:45 pm
SEA
- BLL
1 stop14h 45m
Air France
Wed 8/56:00 am
BLL
- SEA
1 stop14h 37m
Air France
Deal found 7/22![Air France logo]()
$677
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:45 pm
SEA
- BLL
1 stop14h 45m
Delta
Wed 8/510:15 am
BLL
- SEA
2 stops18h 48m
Delta
Deal found 7/22![Delta logo]()
$750
This Cheapflightsfares deal was found by Cheapflights users on 7/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:55 pm
SEA
- BLL
1 stop23h 00m
Scandinavian Airlines
Sat 8/156:00 am
BLL
- SEA
1 stop16h 45m
Scandinavian Airlines
Deal found 7/22![Scandinavian Airlines logo]()
$769
This Sembo deal was found by Cheapflights users on 7/20. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:55 pm
SEA
- BLL
1 stop16h 50m
Scandinavian Airlines
Fri 8/219:05 pm
BLL
- SEA
1 stop25h 40m
Scandinavian Airlines
Deal found 7/20![Scandinavian Airlines logo]()
$696
This KLM deal was found by Cheapflights users on 7/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:50 pm
SEA
- BLL
1 stop12h 10m
Multiple Airlines
Tue 8/2512:00 pm
BLL
- SEA
1 stop14h 34m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$612
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:50 pm
SEA
- BLL
1 stop16h 55m
Delta
Tue 8/2512:00 pm
BLL
- SEA
1 stop14h 34m
Delta
Deal found 7/21![Delta logo]()
$617
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:15 am
SEA
- BLL
2 stops18h 45m
Delta
Tue 8/256:40 am
BLL
- SEA
1 stop19h 54m
Delta
Deal found 7/20![Delta logo]()
$655
One-way flights from Seattle to BillundSearch for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Fri 10/27:00 pm
SEA
- BLL
3 stops26h 50m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 10/17:00 pm
SEA
- BLL
3 stops35h 25m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 10/17:00 pm
SEA
- BLL
1 stop17h 35m
Icelandair
Deal found 7/19![Icelandair logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Wed 9/307:00 pm
SEA
- BLL
3 stops28h 15m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$394
This Mytrip deal was found by Cheapflights users on 7/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:00 am
SEA
- BLL
2 stops17h 05m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/1010:29 am
SEA
- BLL
3 stops46h 26m
United Airlines
Deal found 7/19![United Airlines logo]()
$446
This Lufthansa deal was found by Cheapflights users on 7/19. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:10 pm
SEA
- BLL
1 stop19h 00m
Lufthansa
Deal found 7/19![Lufthansa logo]()
$450
This Cheapflightsfares deal was found by Cheapflights users on 7/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:30 pm
SEA
- BLL
1 stop16h 00m
British Airways
Deal found 7/19![British Airways logo]()
$620
Find flight deals from Seattle to Billund
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Billund (BLL). 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 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $612 (KLM) |
One-way from | $322 (Kiwi.com) |
Popular in | September |
Cheapest in | February |
Average price | $884 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Billund 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 24, 2026.
Use the filters below to find and compare flights from Seattle to Billund that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Tue 8/18
1:50 pm-11:00 am
1 stop12h 10m
Billund
Tue 8/25
12:00 pm-5:34 pm
1 stop14h 34m
$612
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Tue 8/18
1:50 pm-3:45 pm
1 stop16h 55m
Billund
Tue 8/25
12:00 pm-5:34 pm
1 stop14h 34m
$617
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Wed 8/19
7:15 am-11:00 am
2 stops18h 45m
Billund
Tue 8/25
6:40 am-5:34 pm
1 stop19h 54m
$655
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 8/15
3:55 pm-3:05 pm
1 stop14h 10m
Billund
Fri 8/21
7:40 pm-1:45 pm
2 stops27h 05m
$705
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Wed 12/2
7:00 am-9:55 am
2 stops17h 55m
Billund
Sun 12/6
6:35 am-12:00 pm
1 stop14h 25m
$762
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Fri 8/7
3:55 pm-11:55 pm
1 stop23h 00m
Billund
Sat 8/15
6:00 am-1:45 pm
1 stop16h 45m
$769
Cheapest one-way
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Fri 10/2
7:00 pm-6:50 am
3 stops26h 50m
$322
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Wed 9/30
7:00 pm-11:25 pm
2 stops19h 25m
$419
Quickest one-way
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Mon 8/10
8:00 am-10:05 am
2 stops17h 05m
$422
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Mon 8/10
10:29 am-5:55 pm
3 stops46h 26m
$446
Showing 1-10 of 12 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Seattle-Billund flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Billund flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Billund flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Billund flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Billund flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Billund
Have a flexible travel schedule? Discover the best time to fly to Billund from Seattle with our price prediction graph.
SEA-BLL
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 Seattle to Billund
Reviews of airlines servicing Billund
Get insights into the airlines that provide service to Billund. 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 Billund. Reviews last updated July 24, 2026.
Peruse reviews from past customers who have flown with Delta and Air France from Seattle to Billund 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.
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to Billund. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Billund if you plan to visit one of these locationsVejle
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Seattle and Billund flights
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Billund
Discover the top 2 airlines that operate flights from Seattle to Billund. 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 2,558,603 searches. Data last updated July 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$421 | Average$706 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$648 | FlexibilityNo cancel fee | On-time77% |