$570+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Dec 12 — Dec 191
Round-trip
1 adult, Economy
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1. Tell us where you want to go
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Billund
Best
One-way
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 November 12, 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 November 12, 2026.
This Air France deal was found by Cheapflights users on 11/7. 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 2/143:30 pm -
1 stop21h 15m
Mon 2/227:05 am -
1 stop16h 58m
Deal found 11/7![Air France logo]()
$605
This Delta deal was found by Cheapflights users on 11/7. 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 2/143:30 pm -
1 stop13h 55m
Mon 2/2210:25 am -
2 stops20h 26m
Deal found 11/7![Delta logo]()
$615
This Icelandair deal was found by Cheapflights users on 11/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/223:40 pm -
1 stop20h 55m
Mon 4/2610:35 pm -
1 stop28h 20m
Deal found 11/11![Icelandair logo]()
$637
This FlightHub deal was found by Cheapflights users on 11/10. 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.
Fri 3/199:50 am -
2 stops40h 25m
Mon 3/297:15 pm -
2 stops35h 47m
Deal found 11/10![Scandinavian Airlines logo]()
$718
This KLM deal was found by Cheapflights users on 11/10. 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.
Fri 3/193:35 pm -
1 stop14h 10m
Mon 3/2911:45 am -
1 stop13h 35m
Deal found 11/10![KLM logo]()
$724
This Delta deal was found by Cheapflights users on 11/11. 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 1/229:44 am -
2 stops19h 41m
Sun 1/316:00 am -
1 stop14h 50m
Deal found 11/11![Delta logo]()
$616
This Scandinavian Airlines deal was found by Cheapflights users on 11/11. 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.
Thu 4/227:20 am -
2 stops28h 15m
Mon 4/269:05 pm -
2 stops33h 57m
Deal found 11/11![Scandinavian Airlines logo]()
$760
This Delta deal was found by Cheapflights users on 11/10. 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 3/193:35 pm -
1 stop11h 50m
Mon 3/2910:15 am -
2 stops20h 49m
Deal found 11/10![Delta logo]()
$735
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 November 12, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Fri 12/255:00 am -
2 stops28h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![United Airlines logo]()
$570
This Delta deal was found by Cheapflights users on 11/10. 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 12/253:25 pm -
1 stop14h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Delta logo]()
$752
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 November 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $605 (Air France) |
One-way from | $570 (United Airlines) |
Popular in | December |
Cheapest in | February |
Average price | $598 |
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 November 12, 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 Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 12/25
5:00 am-6:20 pm
2 stops28h 20m
Billund
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$570
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sun 2/14
3:30 pm-9:45 pm
1 stop21h 15m
Billund
Mon 2/22
7:05 am-3:03 pm
1 stop16h 58m
$605
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sun 2/14
3:30 pm-2:25 pm
1 stop13h 55m
Billund
Mon 2/22
10:25 am-9:51 pm
2 stops20h 26m
$615
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 1/22
9:44 am-2:25 pm
2 stops19h 41m
Billund
Sun 1/31
6:00 am-11:50 am
1 stop14h 50m
$616
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Thu 4/22
3:40 pm-9:35 pm
1 stop20h 55m
Billund
Mon 4/26
10:35 pm-5:55 pm
1 stop28h 20m
$637
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 3/19
9:50 am-10:15 am
2 stops40h 25m
Billund
Mon 3/29
7:15 pm-10:02 pm
2 stops35h 47m
$718
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 3/19
3:35 pm-1:45 pm
1 stop14h 10m
Billund
Mon 3/29
11:45 am-4:20 pm
1 stop13h 35m
$724
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 3/19
3:35 pm-11:25 am
1 stop11h 50m
Billund
Mon 3/29
10:15 am-10:04 pm
2 stops20h 49m
$735
Quickest round-trip
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 12/25
3:25 pm-2:25 pm
1 stop14h 00m
Billund
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$752
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Thu 4/22
7:20 am-8:35 pm
2 stops28h 15m
Billund
Mon 4/26
9:05 pm-10:02 pm
2 stops33h 57m
$760
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.
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 November 12, 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.
Entertainment
7.8
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Food
7.2
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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Seattle and Billund flights
Browse other Seattle and Billund flight options. Last updated on November 12, 2026.
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Popular flight searches
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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 November 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$473 | Average$677 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$791 | FlexibilityNo cancel fee | On-time77% |