$278+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Jun 24 — Jul 11
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 25, 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 25, 2026.
This Air France deal was found by Cheapflights users on 5/24. 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 7/96:40 am
BLL
- SEA
1 stop13h 35m
Air France
Deal found 5/24![Air France logo]()
$673
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 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 7/286:35 pm
SEA
- BLL
1 stop31h 45m
Delta
Mon 9/284:00 pm
BLL
- SEA
1 stop28h 47m
Delta
Deal found 5/20![Delta logo]()
$679
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:45 pm
SEA
- BLL
1 stop24h 15m
KLM
Tue 9/296:00 am
BLL
- SEA
1 stop14h 47m
KLM
Deal found 5/20![KLM logo]()
$689
This Air France 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 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
Tue 9/296:40 am
BLL
- SEA
1 stop13h 35m
Air France
Deal found 5/20![Air France logo]()
$690
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 7/299:05 am
SEA
- BLL
2 stops15h 30m
Delta
Mon 9/2812:00 pm
BLL
- SEA
1 stop14h 43m
Delta
Deal found 5/20![Delta logo]()
$694
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 9/276:00 am
BLL
- SEA
2 stops19h 55m
Delta
Deal found 5/20![Delta logo]()
$700
This oojo deal was found by Cheapflights users on 5/22. 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 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 5/22![Icelandair logo]()
$720
This British Airways deal was found by Cheapflights users on 5/24. 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.
Wed 11/46:50 pm
SEA
- BLL
1 stop16h 00m
British Airways
Sun 11/88:50 pm
BLL
- SEA
1 stop29h 05m
British Airways
Deal found 5/24![British Airways logo]()
$751
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 25, 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 25, 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
Mon 9/284:00 pm
BLL
- SEA
1 stop28h 47m
Delta
Deal found 5/20![Delta logo]()
$677
This oojo deal was found by Cheapflights users on 5/22. 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 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 5/22![Icelandair logo]()
$720
This British Airways deal was found by Cheapflights users on 5/24. 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.
Wed 11/46:50 pm
SEA
- BLL
1 stop16h 00m
British Airways
Sun 11/88:50 pm
BLL
- SEA
1 stop29h 05m
British Airways
Deal found 5/24![British Airways logo]()
$751
This Air Canada deal was found by Cheapflights users on 5/24. 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.
Wed 11/43:15 pm
SEA
- BLL
2 stops37h 10m
Air Canada
Sun 11/86:35 am
BLL
- SEA
2 stops24h 22m
Air Canada
Deal found 5/24![Air Canada logo]()
$759
This United Airlines deal was found by Cheapflights users on 5/24. 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 11/411:50 pm
SEA
- BLL
2 stops28h 35m
United Airlines
Sun 11/86:35 am
BLL
- SEA
1 stop14h 25m
United Airlines
Deal found 5/24![United Airlines logo]()
$764
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 7/286:35 pm
SEA
- BLL
1 stop31h 45m
Delta
Mon 9/284:00 pm
BLL
- SEA
1 stop28h 47m
Delta
Deal found 5/20![Delta logo]()
$679
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated May 25, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated May 25, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 5/22. 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 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 5/22![Icelandair logo]()
$720
This Delta deal was found by Cheapflights users on 5/22. 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 6/282:30 pm
SEA
- BLL
2 stops18h 25m
Delta
Wed 7/86:40 am
BLL
- SEA
2 stops18h 48m
Delta
Deal found 5/22![Delta logo]()
$1,021
This Air France deal was found by Cheapflights users on 5/24. 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 7/96:40 am
BLL
- SEA
1 stop13h 35m
Air France
Deal found 5/24![Air France logo]()
$673
This Delta deal was found by Cheapflights users on 5/21. 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.
Mon 6/297:20 am
SEA
- BLL
2 stops18h 40m
Delta
Thu 7/96:40 am
BLL
- SEA
1 stop13h 35m
Delta
Deal found 5/21![Delta logo]()
$850
This Finnair deal was found by Cheapflights users on 5/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:30 pm
SEA
- BLL
2 stops39h 20m
Multiple Airlines
Thu 7/92:35 pm
BLL
- SEA
2 stops36h 50m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$900
This oojo deal was found by Cheapflights users on 5/25. 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.
Mon 6/297:20 am
SEA
- BLL
2 stops24h 20m
Scandinavian Airlines
Thu 7/95:15 pm
BLL
- SEA
1 stop29h 30m
Scandinavian Airlines
Deal found 5/25![Scandinavian Airlines logo]()
$1,038
This FlightHub deal was found by Cheapflights users on 5/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:20 pm
SEA
- BLL
2 stops34h 00m
Air Canada
Thu 7/96:00 am
BLL
- SEA
2 stops37h 07m
Air Canada
Deal found 5/24![Air Canada logo]()
$1,117
This Cheapflightsfares deal was found by Cheapflights users on 5/25. 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 stops33h 21m
Lufthansa
Deal found 5/25![Lufthansa logo]()
$1,121
This United Airlines deal was found by Cheapflights users on 5/25. 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 6/2910:29 am
SEA
- BLL
3 stops38h 41m
United Airlines
Thu 7/96:00 am
BLL
- SEA
2 stops22h 36m
United Airlines
Deal found 5/25![United Airlines logo]()
$1,142
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 25, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated May 25, 2026.
This Air France deal was found by Cheapflights users on 5/25. 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 7/161:45 pm
SEA
- BLL
1 stop14h 45m
Air France
Deal found 5/25![Air France logo]()
$278
This Delta deal was found by Cheapflights users on 5/25. 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 7/169:30 am
SEA
- BLL
2 stops19h 00m
Delta
Deal found 5/25![Delta logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 5/25. 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 7/167:00 pm
SEA
- BLL
3 stops37h 05m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$355
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 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $673 (Air France) |
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 25, 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
Wed 7/29
1:30 pm-11:20 am
1 stop12h 50m
Billund
Mon 9/28
4:00 pm-11:47 am
1 stop28h 47m
$677
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Tue 7/28
6:35 pm-11:20 am
1 stop31h 45m
Billund
Mon 9/28
4:00 pm-11:47 am
1 stop28h 47m
$679
Quickest round-trip
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
$720
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Wed 11/4
6:50 pm-7:50 pm
1 stop16h 00m
Billund
Sun 11/8
8:50 pm-4:55 pm
1 stop29h 05m
$751
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Wed 11/4
3:15 pm-1:25 pm
2 stops37h 10m
Billund
Sun 11/8
6:35 am-9:57 pm
2 stops24h 22m
$759
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Wed 11/4
11:50 pm-1:25 pm
2 stops28h 35m
Billund
Sun 11/8
6:35 am-12:00 pm
1 stop14h 25m
$764
Cheapest one-way
Quickest one-way
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Thu 7/16
1:45 pm-1:30 pm
1 stop14h 45m
$278
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Thu 7/16
9:30 am-1:30 pm
2 stops19h 00m
$282
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Thu 7/16
7:00 pm-5:05 pm
3 stops37h 05m
$355
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 May 25, 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.
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Food
7.2
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
Browse other Seattle and Billund flight options. Last updated on May 25, 2026.
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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 25, 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 |