$671+ Cheap flights from Seattle (SEA) to Billund (BLL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Jul 17 — Jul 241
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Billund with Cheapflights
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Best
Last-minute
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 June 17, 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 June 17, 2026.
This Air France deal was found by Cheapflights users on 6/15. 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.
Mon 6/296:50 pm
SEA
- BLL
1 stop18h 35m
Air France
Thu 7/910:15 am
BLL
- SEA
1 stop15h 05m
Air France
Deal found 6/15![Air France logo]()
$671
This KLM deal was found by Cheapflights users on 6/17. 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.
Mon 6/291:30 pm
SEA
- BLL
1 stop12h 50m
Multiple Airlines
Thu 7/96:00 am
BLL
- SEA
1 stop14h 33m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$672
This Air France deal was found by Cheapflights users on 6/12. 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.
Sun 7/51:45 pm
SEA
- BLL
1 stop19h 10m
Air France
Thu 7/96:00 am
BLL
- SEA
1 stop19h 20m
Air France
Deal found 6/12![Air France logo]()
$704
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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.
Tue 7/283:55 pm
SEA
- BLL
1 stop23h 00m
Scandinavian Airlines
Tue 8/46:25 am
BLL
- SEA
1 stop16h 20m
Scandinavian Airlines
Deal found 6/13![Scandinavian Airlines logo]()
$727
This British Airways deal was found by Cheapflights users on 6/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:50 pm
SEA
- BLL
1 stop15h 55m
British Airways
Thu 11/191:00 pm
BLL
- SEA
1 stop12h 55m
British Airways
Deal found 6/15![British Airways logo]()
$750
This Air Canada deal was found by Cheapflights users on 6/15. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:10 am
SEA
- BLL
2 stops23h 10m
Air Canada
Thu 11/196:35 am
BLL
- SEA
2 stops24h 22m
Air Canada
Deal found 6/15![Air Canada logo]()
$758
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Sun 11/1511:50 pm
SEA
- BLL
2 stops28h 35m
United Airlines
Thu 11/196:35 am
BLL
- SEA
1 stop14h 25m
United Airlines
Deal found 6/15![United Airlines logo]()
$763
This Air France deal was found by Cheapflights users on 6/13. 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.
Sat 6/271:30 pm
SEA
- BLL
1 stop12h 50m
Multiple Airlines
Tue 6/306:45 pm
BLL
- SEA
1 stop25h 48m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$832
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 June 17, 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 June 17, 2026.
This Air France deal was found by Cheapflights users on 6/15. 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.
Mon 6/296:50 pm
SEA
- BLL
1 stop18h 35m
Air France
Thu 7/910:15 am
BLL
- SEA
1 stop15h 05m
Air France
Deal found 6/15![Air France logo]()
$671
This British Airways deal was found by Cheapflights users on 6/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:50 pm
SEA
- BLL
1 stop15h 55m
British Airways
Thu 11/191:00 pm
BLL
- SEA
1 stop12h 55m
British Airways
Deal found 6/15![British Airways logo]()
$750
This Air Canada deal was found by Cheapflights users on 6/15. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:10 am
SEA
- BLL
2 stops23h 10m
Air Canada
Thu 11/196:35 am
BLL
- SEA
2 stops24h 22m
Air Canada
Deal found 6/15![Air Canada logo]()
$758
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Sun 11/1511:50 pm
SEA
- BLL
2 stops28h 35m
United Airlines
Thu 11/196:35 am
BLL
- SEA
1 stop14h 25m
United Airlines
Deal found 6/16![United Airlines logo]()
$763
This Air France deal was found by Cheapflights users on 6/12. 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.
Sun 7/51:45 pm
SEA
- BLL
1 stop19h 10m
Air France
Thu 7/96:00 am
BLL
- SEA
1 stop19h 20m
Air France
Deal found 6/12![Air France logo]()
$704
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated June 17, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated June 17, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 6/13. 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.
Sat 6/271:30 pm
SEA
- BLL
1 stop12h 50m
Multiple Airlines
Tue 6/306:45 pm
BLL
- SEA
1 stop25h 48m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$832
This Air France deal was found by Cheapflights users on 6/13. 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.
Mon 6/291:30 pm
SEA
- BLL
1 stop12h 50m
Air France
Thu 7/910:15 am
BLL
- SEA
1 stop15h 05m
Air France
Deal found 6/13![Air France logo]()
$671
This KLM deal was found by Cheapflights users on 6/17. 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.
Mon 6/291:30 pm
SEA
- BLL
1 stop12h 50m
Multiple Airlines
Thu 7/96:00 am
BLL
- SEA
1 stop14h 33m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$672
This Delta deal was found by Cheapflights users on 6/17. 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.
Mon 6/297:20 am
SEA
- BLL
2 stops18h 40m
Delta
Thu 7/96:00 am
BLL
- SEA
1 stop14h 33m
Delta
Deal found 6/17![Delta logo]()
$849
This Justfly.com deal was found by Cheapflights users on 6/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:45 am
SEA
- BLL
2 stops22h 45m
Lufthansa
Thu 7/96:40 pm
BLL
- SEA
2 stops35h 06m
Lufthansa
Deal found 6/17![Lufthansa logo]()
$973
This Air France deal was found by Cheapflights users on 6/12. 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.
Sun 7/51:45 pm
SEA
- BLL
1 stop19h 10m
Air France
Thu 7/96:00 am
BLL
- SEA
1 stop19h 20m
Air France
Deal found 6/12![Air France logo]()
$704
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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.
Tue 7/283:55 pm
SEA
- BLL
1 stop23h 00m
Scandinavian Airlines
Tue 8/46:25 am
BLL
- SEA
1 stop16h 20m
Scandinavian Airlines
Deal found 6/13![Scandinavian Airlines logo]()
$727
This Delta deal was found by Cheapflights users on 6/13. 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 7/287:29 am
SEA
- BLL
2 stops18h 31m
Delta
Tue 8/410:15 am
BLL
- SEA
2 stops18h 48m
Delta
Deal found 6/13![Delta logo]()
$936
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 June 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $671 (Air France) |
Popular in | September |
Cheapest in | February |
Average price | $791 |
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 June 17, 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
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Mon 6/29
6:50 pm-10:25 pm
1 stop18h 35m
Billund
Thu 7/9
10:15 am-4:20 pm
1 stop15h 05m
$671
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 7/5
1:45 pm-5:55 pm
1 stop19h 10m
Billund
Thu 7/9
6:00 am-4:20 pm
1 stop19h 20m
$704
Quickest round-trip
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 11/15
6:50 pm-7:45 pm
1 stop15h 55m
Billund
Thu 11/19
1:00 pm-4:55 pm
1 stop12h 55m
$750
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 11/15
10:10 am-6:20 pm
2 stops23h 10m
Billund
Thu 11/19
6:35 am-9:57 pm
2 stops24h 22m
$758
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 11/15
11:50 pm-1:25 pm
2 stops28h 35m
Billund
Thu 11/19
6:35 am-12:00 pm
1 stop14h 25m
$763
Sorted 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 June 17, 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.
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
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
Browse other Seattle and Billund flight options. Last updated on June 17, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 17, 2026.
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 June 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$332 | Average$648 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$421 | Average$822 | FlexibilityNo cancel fee | On-timeN/A |