$401+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
One-way
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 August 22, 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 August 22, 2026.
This oojo deal was found by Cheapflights users on 8/19. 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.
Sat 10/33:55 pm -
1 stop14h 10m
Sat 10/103:40 pm -
1 stop31h 05m
Deal found 8/19![Scandinavian Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 8/19. 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.
Tue 10/61:30 pm -
1 stop12h 50m
Wed 10/2112:00 pm -
1 stop14h 47m
Deal found 8/19![Delta logo]()
$500
This KLM deal was found by Cheapflights users on 8/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:40 pm -
1 stop18h 45m
Thu 9/310:15 am -
1 stop15h 20m
Deal found 8/22![Multiple Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 8/307:15 am -
2 stops19h 05m
Fri 9/116:00 am -
1 stop14h 47m
Deal found 8/20![Delta logo]()
$504
This Delta deal was found by Cheapflights users on 8/21. 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 10/67:15 am -
2 stops19h 05m
Tue 10/206:40 am -
1 stop20h 07m
Deal found 8/21![Delta logo]()
$505
This Delta deal was found by Cheapflights users on 8/20. 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.
Sat 10/37:15 am -
2 stops17h 50m
Sat 10/246:40 am -
1 stop13h 35m
Deal found 8/20![Delta logo]()
$506
This Delta deal was found by Cheapflights users on 8/19. 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.
Fri 10/25:45 pm -
1 stop30h 50m
Wed 10/216:40 am -
1 stop20h 07m
Deal found 8/19![Delta logo]()
$511
This Delta deal was found by Cheapflights users on 8/20. 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 8/245:45 pm -
1 stop15h 10m
Tue 9/16:40 am -
1 stop13h 35m
Deal found 8/20![Delta logo]()
$512
This Delta deal was found by Cheapflights users on 8/20. 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.
Sat 8/227:15 am -
2 stops17h 20m
Sat 8/2910:15 am -
1 stop15h 12m
Deal found 8/20![Delta logo]()
$516
This Delta deal was found by Cheapflights users on 8/22. 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.
Sun 8/2311:05 am -
2 stops17h 25m
Thu 9/36:40 am -
1 stop13h 35m
Deal found 8/22![Delta logo]()
$517
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 August 22, 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 August 22, 2026.
This KLM deal was found by Cheapflights users on 8/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/61:30 pm -
1 stop12h 50m
Tue 10/2010:15 am -
1 stop15h 20m
Deal found 8/22![Multiple Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 8/20. 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 10/67:15 am -
2 stops19h 05m
Tue 10/206:40 am -
1 stop20h 07m
Deal found 8/20![Delta logo]()
$504
This Delta deal was found by Cheapflights users on 8/20. 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.
Sat 10/37:15 am -
2 stops17h 50m
Sat 10/246:40 am -
1 stop13h 35m
Deal found 8/20![Delta logo]()
$506
This Delta deal was found by Cheapflights users on 8/20. 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 10/195:45 pm -
1 stop15h 10m
Tue 10/276:00 am -
2 stops17h 54m
Deal found 8/20![Delta logo]()
$554
This Delta deal was found by Cheapflights users on 8/19. 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.
Tue 10/61:30 pm -
1 stop12h 50m
Thu 10/2210:15 am -
2 stops21h 49m
Deal found 8/19![Delta logo]()
$612
This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:40 am -
2 stops18h 50m
Wed 9/236:00 am -
2 stops19h 44m
Deal found 8/18![Delta logo]()
$641
This Delta deal was found by Cheapflights users on 8/20. 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 9/26:05 am -
2 stops18h 30m
Fri 9/116:00 am -
2 stops26h 00m
Deal found 8/20![Delta logo]()
$653
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated August 22, 2026 and is based on user searches.
This Air France deal was found by Cheapflights users on 8/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:45 pm -
1 stop20h 15m
Sat 8/296:00 am -
1 stop14h 37m
Deal found 8/20![Multiple Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 8/20. 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.
Sat 8/227:15 am -
2 stops17h 20m
Sat 8/2910:15 am -
1 stop15h 12m
Deal found 8/20![Delta logo]()
$516
This Delta deal was found by Cheapflights users on 8/20. 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.
Sat 8/227:15 am -
2 stops17h 20m
Tue 9/16:40 am -
2 stops25h 40m
Deal found 8/20![Delta logo]()
$526
This KLM deal was found by Cheapflights users on 8/19. 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.
Sun 8/236:40 pm -
1 stop18h 45m
Thu 9/310:15 am -
1 stop15h 20m
Deal found 8/19![Multiple Airlines logo]()
$500
This Delta deal was found by Cheapflights users on 8/22. 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.
Sun 8/2311:05 am -
2 stops17h 25m
Thu 9/36:40 am -
1 stop13h 35m
Deal found 8/22![Delta logo]()
$517
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 8/231:30 pm -
1 stop12h 50m
Tue 9/16:40 am -
1 stop13h 35m
Deal found 8/20![Delta logo]()
$556
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 8/231:30 pm -
1 stop12h 50m
Sun 8/306:00 am -
2 stops23h 23m
Deal found 8/20![Delta logo]()
$566
This Delta deal was found by Cheapflights users on 8/20. 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 8/245:45 pm -
1 stop15h 10m
Tue 9/16:40 am -
1 stop13h 35m
Deal found 8/20![Delta logo]()
$512
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 8/307:15 am -
2 stops19h 05m
Fri 9/116:00 am -
1 stop14h 47m
Deal found 8/20![Delta logo]()
$504
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 August 22, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:50 pm -
2 stops19h 45m
Deal found 8/18![Lufthansa logo]()
$401
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/99:00 am -
3 stops44h 00m
Deal found 8/18![United Airlines logo]()
$446
This oojo deal was found by Cheapflights users on 8/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/32:10 pm -
1 stop14h 55m
Deal found 8/20![Lufthansa logo]()
$457
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:05 am -
3 stops47h 55m
Deal found 8/20![United Airlines logo]()
$523
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 August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $464 (oojo) |
One-way from | $401 (oojo) |
Popular in | September |
Cheapest in | February |
Average price | $698 |
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 7,457,451 searches. Data last updated August 22, 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 Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Tue 10/6
1:30 pm-11:20 am
1 stop12h 50m
Billund
Tue 10/20
10:15 am-4:35 pm
1 stop15h 20m
$501
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Tue 10/6
7:15 am-11:20 am
2 stops19h 05m
Billund
Tue 10/20
6:40 am-5:47 pm
1 stop20h 07m
$504
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sat 10/3
7:15 am-10:05 am
2 stops17h 50m
Billund
Sat 10/24
6:40 am-11:15 am
1 stop13h 35m
$506
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Mon 10/19
5:45 pm-5:55 pm
1 stop15h 10m
Billund
Tue 10/27
6:00 am-3:54 pm
2 stops17h 54m
$554
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Tue 10/6
1:30 pm-11:20 am
1 stop12h 50m
Billund
Thu 10/22
10:15 am-11:04 pm
2 stops21h 49m
$612
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Thu 9/17
9:40 am-1:30 pm
2 stops18h 50m
Billund
Wed 9/23
6:00 am-4:44 pm
2 stops19h 44m
$641
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Wed 9/2
6:05 am-9:35 am
2 stops18h 30m
Billund
Fri 9/11
6:00 am-11:00 pm
2 stops26h 00m
$653
Cheapest one-way
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Wed 9/9
9:00 am-2:00 pm
3 stops44h 00m
$446
Quickest one-way
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sat 10/3
2:10 pm-2:05 pm
1 stop14h 55m
$457
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sat 10/3
9:05 am-6:00 pm
3 stops47h 55m
$523
Showing 1-10 of 11 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 August 22, 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
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
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 August 22, 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 August 22, 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 7,457,451 searches. Data last updated August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$473 | Average$677 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$648 | FlexibilityNo cancel fee | On-time77% |