$292+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Jun 19 — Jun 261
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 May 20, 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 May 20, 2026.
This Delta deal was found by Cheapflights users on 5/20. 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 7/291:30 pm
SEA
- BLL
1 stop12h 50m
Delta
Sun 9/276:00 am
BLL
- SEA
1 stop19h 35m
Delta
Deal found 5/20![Delta logo]()
$677
This Delta deal was found by Cheapflights users on 5/20. 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 7/291:30 pm
SEA
- BLL
1 stop12h 50m
Delta
Tue 9/296:40 am
BLL
- SEA
1 stop13h 35m
Delta
Deal found 5/20![Delta logo]()
$678
This KLM deal was found by Cheapflights users on 5/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/11:30 pm
SEA
- BLL
1 stop23h 55m
Multiple Airlines
Tue 9/296:00 am
BLL
- SEA
1 stop14h 47m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$679
This Delta deal was found by Cheapflights users on 5/17. 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.
Sun 8/26:40 pm
SEA
- BLL
1 stop31h 40m
Delta
Fri 9/256:40 am
BLL
- SEA
1 stop20h 03m
Delta
Deal found 5/17![Delta logo]()
$680
This Delta deal was found by Cheapflights users on 5/20. 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 7/291:30 pm
SEA
- BLL
1 stop12h 50m
Delta
Mon 9/286:00 am
BLL
- SEA
2 stops22h 33m
Delta
Deal found 5/20![Delta logo]()
$687
This Air France deal was found by Cheapflights users on 5/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:45 pm
SEA
- BLL
1 stop17h 00m
Air France
Sun 9/206:00 am
BLL
- SEA
1 stop14h 47m
Air France
Deal found 5/19![Air France logo]()
$689
This KLM deal was found by Cheapflights users on 5/17. 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.
Tue 9/85:40 pm
SEA
- BLL
1 stop30h 55m
Multiple Airlines
Tue 9/296:40 am
BLL
- SEA
1 stop13h 35m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$690
This Air France deal was found by Cheapflights users on 5/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/11:30 pm
SEA
- BLL
1 stop23h 55m
Air France
Wed 9/3012:00 pm
BLL
- SEA
1 stop32h 15m
Air France
Deal found 5/19![Air France logo]()
$692
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 am
SEA
- BLL
2 stops18h 35m
Delta
Tue 9/2210:15 am
BLL
- SEA
1 stop15h 20m
Delta
Deal found 5/19![Delta logo]()
$693
This Delta deal was found by Cheapflights users on 5/17. 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.
Tue 9/89:50 am
SEA
- BLL
2 stops18h 40m
Delta
Tue 9/2912:00 pm
BLL
- SEA
1 stop14h 43m
Delta
Deal found 5/17![Delta logo]()
$694
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:45 pm
SEA
- BLL
1 stop13h 00m
Delta
Wed 9/3011:45 am
BLL
- SEA
2 stops19h 20m
Delta
Deal found 5/19![Delta logo]()
$699
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 May 20, 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 May 20, 2026.
This Delta deal was found by Cheapflights users on 5/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:40 pm
SEA
- BLL
1 stop31h 40m
Delta
Tue 9/296:00 am
BLL
- SEA
1 stop14h 47m
Delta
Deal found 5/19![Delta logo]()
$679
This oojo deal was found by Cheapflights users on 5/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/287:00 pm
SEA
- BLL
1 stop17h 35m
Icelandair
Wed 7/810:35 pm
BLL
- SEA
1 stop22h 10m
Icelandair
Deal found 5/16![Icelandair logo]()
$726
This oojo deal was found by Cheapflights users on 5/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/283:55 pm
SEA
- BLL
1 stop15h 45m
Scandinavian Airlines
Wed 7/85:15 pm
BLL
- SEA
2 stops35h 34m
Scandinavian Airlines
Deal found 5/16![Scandinavian Airlines logo]()
$787
This United Airlines deal was found by Cheapflights users on 5/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:13 pm
SEA
- BLL
2 stops33h 47m
United Airlines
Wed 10/216:00 am
BLL
- SEA
2 stops17h 22m
United Airlines
Deal found 5/17![United Airlines logo]()
$795
This British Airways deal was found by Cheapflights users on 5/15. 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.
Sat 10/178:20 pm
SEA
- BLL
1 stop15h 05m
British Airways
Wed 10/2112:10 pm
BLL
- SEA
1 stop32h 25m
British Airways
Deal found 5/15![British Airways logo]()
$804
This Delta deal was found by Cheapflights users on 5/20. 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.
Tue 7/281:45 pm
SEA
- BLL
1 stop14h 45m
Delta
Sun 9/2710:15 am
BLL
- SEA
2 stops19h 26m
Delta
Deal found 5/20![Delta logo]()
$700
This Delta deal was found by Cheapflights users on 5/17. 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.
Tue 9/89:50 am
SEA
- BLL
2 stops18h 40m
Delta
Tue 9/2910:15 am
BLL
- SEA
2 stops21h 02m
Delta
Deal found 5/17![Delta logo]()
$705
This United Airlines deal was found by Cheapflights users on 5/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/111:11 pm
SEA
- BLL
2 stops25h 59m
United Airlines
Sat 9/266:00 am
BLL
- SEA
1 stop14h 55m
United Airlines
Deal found 5/17![United Airlines logo]()
$795
This Delta deal was found by Cheapflights users on 5/17. 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.
Sun 8/21:50 pm
SEA
- BLL
1 stop14h 40m
Delta
Sun 9/2710:15 am
BLL
- SEA
2 stops19h 38m
Delta
Deal found 5/17![Delta logo]()
$732
This Delta deal was found by Cheapflights users on 5/17. 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.
Sun 8/26:40 pm
SEA
- BLL
1 stop31h 40m
Delta
Sat 9/2610:15 am
BLL
- SEA
2 stops19h 14m
Delta
Deal found 5/17![Delta logo]()
$771
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated May 20, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated May 20, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 5/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/287:00 pm
SEA
- BLL
1 stop17h 35m
Icelandair
Wed 7/810:35 pm
BLL
- SEA
1 stop22h 10m
Icelandair
Deal found 5/19![Icelandair logo]()
$725
This oojo deal was found by Cheapflights users on 5/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/283:55 pm
SEA
- BLL
2 stops15h 55m
Scandinavian Airlines
Wed 7/85:15 pm
BLL
- SEA
2 stops35h 34m
Scandinavian Airlines
Deal found 5/16![Scandinavian Airlines logo]()
$787
This Delta deal was found by Cheapflights users on 5/20. 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.
Mon 6/291:55 pm
SEA
- BLL
1 stop14h 35m
Delta
Thu 7/912:00 pm
BLL
- SEA
1 stop14h 27m
Delta
Deal found 5/20![Delta logo]()
$855
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:45 am
SEA
- BLL
2 stops18h 25m
Lufthansa
Thu 7/96:45 pm
BLL
- SEA
2 stops31h 14m
Lufthansa
Deal found 5/17![Lufthansa logo]()
$977
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 May 20, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated May 20, 2026.
This KLM deal was found by Cheapflights users on 5/17. 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.
Tue 9/85:40 pm
SEA
- BLL
1 stop30h 55m
KLM
Deal found 5/17![KLM logo]()
$292
This Delta deal was found by Cheapflights users on 5/17. 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.
Tue 9/89:50 am
SEA
- BLL
2 stops18h 40m
Delta
Deal found 5/17![Delta logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 pm
SEA
- BLL
3 stops31h 40m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$324
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 May 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $677 (Delta) |
One-way from | $292 (KLM) |
Popular in | January |
Cheapest in | February |
Average price | $611 |
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 May 20, 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
Sun 8/2
6:40 pm-11:20 am
1 stop31h 40m
Billund
Tue 9/29
6:00 am-11:47 am
1 stop14h 47m
$679
Quickest round-trip
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Tue 7/28
1:45 pm-1:30 pm
1 stop14h 45m
Billund
Sun 9/27
10:15 am-8:41 pm
2 stops19h 26m
$700
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Tue 9/8
9:50 am-1:30 pm
2 stops18h 40m
Billund
Tue 9/29
10:15 am-10:17 pm
2 stops21h 02m
$705
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 6/28
7:00 pm-9:35 pm
1 stop17h 35m
Billund
Wed 7/8
10:35 pm-11:45 am
1 stop22h 10m
$726
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 8/2
1:50 pm-1:30 pm
1 stop14h 40m
Billund
Sun 9/27
10:15 am-8:53 pm
2 stops19h 38m
$732
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 8/2
6:40 pm-11:20 am
1 stop31h 40m
Billund
Sat 9/26
10:15 am-8:29 pm
2 stops19h 14m
$771
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 6/28
3:55 pm-4:40 pm
1 stop15h 45m
Billund
Wed 7/8
5:15 pm-7:49 pm
2 stops35h 34m
$787
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 10/17
11:13 pm-6:00 pm
2 stops33h 47m
Billund
Wed 10/21
6:00 am-2:22 pm
2 stops17h 22m
$795
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 8/1
11:11 pm-10:10 am
2 stops25h 59m
Billund
Sat 9/26
6:00 am-11:55 am
1 stop14h 55m
$795
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 10/17
8:20 pm-8:25 pm
1 stop15h 05m
Billund
Wed 10/21
12:10 pm-11:35 am
1 stop32h 25m
$804
Showing 1-10 of 13 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 May 20, 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
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Crew
8.5
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 May 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$332 | Average$606 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$421 | Average$1,212 | FlexibilityNo cancel fee | On-timeN/A |