$424+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
May 5 — May 121
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
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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 April 5, 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 April 5, 2026.
This Air France deal was found by Cheapflights users on 3/31. 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.
Fri 5/16:40 pm
SEA
- BLL
1 stop18h 45m
Multiple Airlines
Tue 5/56:45 pm
BLL
- SEA
1 stop25h 57m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 4/4. 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 4/86:40 pm
SEA
- BLL
1 stop31h 40m
Delta
Mon 4/206:40 am
BLL
- SEA
1 stop19h 58m
Delta
Deal found 4/4![Delta logo]()
$552
This KLM deal was found by Cheapflights users on 4/4. 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 4/71:45 pm
SEA
- BLL
1 stop24h 15m
KLM
Sun 4/192:30 pm
BLL
- SEA
1 stop30h 15m
KLM
Deal found 4/4![KLM logo]()
$562
This Delta deal was found by Cheapflights users on 4/4. 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 4/610:58 pm
SEA
- BLL
2 stops29h 32m
Delta
Wed 4/2211:45 am
BLL
- SEA
1 stop33h 00m
Delta
Deal found 4/4![Delta logo]()
$566
This Delta deal was found by Cheapflights users on 3/31. 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 4/301:50 pm
SEA
- BLL
1 stop12h 10m
Delta
Thu 5/712:00 pm
BLL
- SEA
2 stops19h 48m
Delta
Deal found 3/31![Delta logo]()
$572
This Delta deal was found by Cheapflights users on 3/31. 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 4/3011:59 pm
SEA
- BLL
2 stops24h 36m
Delta
Sun 5/312:00 pm
BLL
- SEA
2 stops20h 51m
Delta
Deal found 3/31![Delta logo]()
$576
This Delta deal was found by Cheapflights users on 4/4. 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 4/610:58 pm
SEA
- BLL
2 stops29h 32m
Delta
Mon 4/206:40 am
BLL
- SEA
2 stops22h 24m
Delta
Deal found 4/4![Delta logo]()
$597
This Delta deal was found by Cheapflights users on 3/31. 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 5/25:35 pm
SEA
- BLL
1 stop15h 20m
Delta
Tue 5/511:45 am
BLL
- SEA
2 stops35h 15m
Delta
Deal found 3/31![Delta logo]()
$603
This Delta deal was found by Cheapflights users on 4/4. 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 4/71:45 pm
SEA
- BLL
1 stop12h 15m
Delta
Sat 4/186:00 am
BLL
- SEA
2 stops23h 04m
Delta
Deal found 4/4![Delta logo]()
$604
This Delta deal was found by Cheapflights users on 4/4. 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 4/610:58 pm
SEA
- BLL
2 stops29h 32m
Delta
Sat 4/186:00 am
BLL
- SEA
2 stops23h 04m
Delta
Deal found 4/4![Delta logo]()
$608
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 April 5, 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 April 5, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 4/1. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:55 pm
SEA
- BLL
1 stop33h 40m
Scandinavian Airlines
Thu 9/109:05 pm
BLL
- SEA
1 stop25h 40m
Scandinavian Airlines
Deal found 4/1![Scandinavian Airlines logo]()
$765
This United Airlines deal was found by Cheapflights users on 3/31. 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 5/211:59 pm
SEA
- BLL
2 stops29h 11m
United Airlines
Tue 5/52:55 pm
BLL
- SEA
2 stops19h 17m
United Airlines
Deal found 3/31![United Airlines logo]()
$772
This Delta deal was found by Cheapflights users on 3/31. 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 4/307:15 am
SEA
- BLL
2 stops19h 05m
Delta
Sat 5/211:40 am
BLL
- SEA
1 stop33h 02m
Delta
Deal found 3/31![Delta logo]()
$806
This United Airlines deal was found by Cheapflights users on 3/31. 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 9/610:47 am
SEA
- BLL
2 stops38h 18m
United Airlines
Thu 9/106:00 am
BLL
- SEA
1 stop14h 55m
United Airlines
Deal found 3/31![United Airlines logo]()
$804
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated April 5, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated April 5, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/4. 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 4/610:58 pm
SEA
- BLL
2 stops29h 32m
Delta
Wed 4/2211:45 am
BLL
- SEA
1 stop33h 00m
Delta
Deal found 4/4![Delta logo]()
$566
This Delta deal was found by Cheapflights users on 4/4. 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 4/610:58 pm
SEA
- BLL
2 stops29h 32m
Delta
Mon 4/206:40 am
BLL
- SEA
2 stops22h 24m
Delta
Deal found 4/4![Delta logo]()
$597
This Delta deal was found by Cheapflights users on 4/4. 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 4/610:58 pm
SEA
- BLL
2 stops29h 32m
Delta
Sat 4/186:00 am
BLL
- SEA
2 stops23h 04m
Delta
Deal found 4/4![Delta logo]()
$608
This Delta deal was found by Cheapflights users on 4/4. 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 4/71:45 pm
SEA
- BLL
1 stop12h 15m
Delta
Wed 4/2211:45 am
BLL
- SEA
1 stop33h 00m
Delta
Deal found 4/4![Delta logo]()
$562
This Delta deal was found by Cheapflights users on 4/4. 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 4/71:45 pm
SEA
- BLL
1 stop12h 15m
Delta
Sat 4/186:00 am
BLL
- SEA
2 stops23h 04m
Delta
Deal found 4/4![Delta logo]()
$604
This Delta deal was found by Cheapflights users on 4/4. 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 4/86:40 pm
SEA
- BLL
1 stop31h 40m
Delta
Mon 4/206:40 am
BLL
- SEA
1 stop19h 58m
Delta
Deal found 4/4![Delta logo]()
$552
This Delta deal was found by Cheapflights users on 3/31. 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 4/301:50 pm
SEA
- BLL
1 stop12h 10m
Delta
Thu 5/712:00 pm
BLL
- SEA
2 stops19h 48m
Delta
Deal found 3/31![Delta logo]()
$572
This Delta deal was found by Cheapflights users on 3/31. 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 4/3011:59 pm
SEA
- BLL
2 stops24h 36m
Delta
Sun 5/312:00 pm
BLL
- SEA
2 stops20h 51m
Delta
Deal found 3/31![Delta logo]()
$576
This Air France deal was found by Cheapflights users on 3/31. 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.
Fri 5/16:40 pm
SEA
- BLL
1 stop18h 45m
Multiple Airlines
Tue 5/56:45 pm
BLL
- SEA
1 stop25h 57m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 3/31. 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 5/25:35 pm
SEA
- BLL
1 stop15h 20m
Delta
Tue 5/511:45 am
BLL
- SEA
2 stops35h 15m
Delta
Deal found 3/31![Delta logo]()
$603
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 April 5, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated April 5, 2026.
This Finnair deal was found by Cheapflights users on 4/4. 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.
Thu 7/305:05 am
SEA
- BLL
2 stops23h 45m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$424
This Mytrip deal was found by Cheapflights users on 4/4. 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.
Thu 7/3011:25 pm
SEA
- BLL
1 stop13h 10m
Icelandair
Deal found 4/4![Icelandair logo]()
$444
This United Airlines deal was found by Cheapflights users on 4/4. 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.
Thu 7/305:00 am
SEA
- BLL
3 stops24h 00m
United Airlines
Deal found 4/4![United Airlines logo]()
$535
This BusinessClass deal was found by Cheapflights users on 4/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/137:10 pm
SEA
- BLL
1 stop37h 55m
Turkish Airlines
Deal found 4/2![Turkish Airlines logo]()
$3,012
This Cheapflightsfares deal was found by Cheapflights users on 4/1. 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 6/133:55 pm
SEA
- BLL
2 stops18h 50m
Scandinavian Airlines
Deal found 4/1![Scandinavian Airlines logo]()
$3,216
This Cathay Pacific deal was found by Cheapflights users on 4/2. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/138:53 am
SEA
- BLL
3 stops40h 57m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$23,686
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 April 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $550 (Air France) |
One-way from | $424 (Finnair) |
Popular in | January |
Cheapest in | February |
Average price | $716 |
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 April 5, 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 9/6
3:55 pm-10:35 am
1 stop33h 40m
Billund
Thu 9/10
9:05 pm-1:45 pm
1 stop25h 40m
$765
Quickest round-trip
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 5/2
11:59 pm-2:10 pm
2 stops29h 11m
Billund
Tue 5/5
2:55 pm-1:12 am
2 stops19h 17m
$772
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sun 9/6
10:47 am-10:05 am
2 stops38h 18m
Billund
Thu 9/10
6:00 am-11:55 am
1 stop14h 55m
$804
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Thu 4/30
7:15 am-11:20 am
2 stops19h 05m
Billund
Sat 5/2
11:40 am-11:42 am
1 stop33h 02m
$806
Cheapest one-way
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Thu 7/30
5:05 am-1:50 pm
2 stops23h 45m
$424
Quickest one-way
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Thu 7/30
11:25 pm-9:35 pm
1 stop13h 10m
$444
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 6/13
7:10 pm-6:05 pm
1 stop37h 55m
$3,012
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 6/13
3:55 pm-7:45 pm
2 stops18h 50m
$3,216
SeattleBillund
SEA - BLL
SEABLL
Seattle/Tacoma Intl
Sat 6/13
8:53 am-10:50 am
3 stops40h 57m
$23,686
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
What is the cheapest month to book a flight from Seattle to Billund?
Currently, December is the cheapest month in which you can book a flight from Seattle to Billund (average of $332). Flying from Seattle to Billund in January is currently the most expensive (average of $873). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip 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 April 5, 2026.
Peruse reviews from past customers who have flown with Delta and Lufthansa 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.
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Traveling to a place near Billund?
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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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 April 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$421 | Average$822 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$597 | Average$762 | FlexibilityNo cancel fee | On-time76% |