$413+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLL
Sep 10 — Sep 171
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 11, 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 11, 2026.
This KLM deal was found by Cheapflights users on 8/9. 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 8/9![Multiple Airlines logo]()
$497
This Delta deal was found by Cheapflights users on 8/9. 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 8/9![Delta logo]()
$502
This Delta deal was found by Cheapflights users on 8/8. 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 8/231:50 pm -
1 stop12h 10m
Sat 8/292:35 pm -
1 stop30h 02m
Deal found 8/8![Delta logo]()
$509
This Delta deal was found by Cheapflights users on 8/8. 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 8/231:50 pm -
1 stop14h 40m
Mon 8/3110:15 am -
2 stops19h 20m
Deal found 8/8![Delta logo]()
$519
This Air France deal was found by Cheapflights users on 8/8. 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 8/221:30 pm -
1 stop12h 50m
Sat 8/296:00 am -
1 stop14h 37m
Deal found 8/8![Air France logo]()
$554
This Delta deal was found by Cheapflights users on 8/8. 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
Sun 8/306:40 am -
1 stop19h 54m
Deal found 8/8![Delta logo]()
$570
This Delta deal was found by Cheapflights users on 8/10. 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.
Sun 8/231:30 pm -
1 stop12h 50m
Thu 9/311:45 am -
2 stops20h 26m
Deal found 8/10![Delta logo]()
$572
This KLM deal was found by Cheapflights users on 8/8. 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 8/216:40 pm -
1 stop18h 45m
Mon 8/316:00 am -
1 stop19h 27m
Deal found 8/8![Multiple Airlines logo]()
$574
This Delta deal was found by Cheapflights users on 8/8. 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 8/219:40 am -
2 stops23h 15m
Mon 8/314:00 pm -
1 stop28h 47m
Deal found 8/8![Delta logo]()
$590
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 11, 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 11, 2026.
This KLM deal was found by Cheapflights users on 8/9. 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 8/9![Multiple Airlines logo]()
$497
This Delta deal was found by Cheapflights users on 8/9. 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 8/9![Delta logo]()
$502
This Scandinavian Airlines deal was found by Cheapflights users on 8/6. 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 1/317:20 am -
2 stops42h 05m
Thu 2/410:55 am -
2 stops17h 10m
Deal found 8/6![Scandinavian Airlines logo]()
$743
This Delta deal was found by Cheapflights users on 8/8. 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
Sun 8/306:40 am -
1 stop19h 54m
Deal found 8/8![Delta logo]()
$570
This KLM deal was found by Cheapflights users on 8/8. 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 8/216:40 pm -
1 stop18h 45m
Mon 8/316:00 am -
1 stop19h 27m
Deal found 8/8![Multiple Airlines logo]()
$574
This Delta deal was found by Cheapflights users on 8/10. 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.
Sun 8/231:30 pm -
1 stop12h 50m
Thu 9/311:45 am -
2 stops20h 26m
Deal found 8/10![Delta logo]()
$572
This Delta deal was found by Cheapflights users on 8/8. 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 8/219:40 am -
2 stops23h 15m
Mon 8/314:00 pm -
1 stop28h 47m
Deal found 8/8![Delta logo]()
$590
This Delta deal was found by Cheapflights users on 8/10. 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.
Wed 9/237:15 am -
2 stops19h 05m
Wed 9/3011:45 am -
2 stops20h 15m
Deal found 8/10![Delta logo]()
$616
This Delta deal was found by Cheapflights users on 8/8. 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 8/217:15 am -
2 stops17h 20m
Sat 8/296:40 am -
2 stops21h 04m
Deal found 8/8![Delta logo]()
$722
Last-minute flights from Seattle to BillundDiscover last-minute flight deals from Seattle to Billund. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Billund. Data last updated August 11, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 8/8. 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 8/216:40 pm -
1 stop18h 45m
Mon 8/316:00 am -
1 stop19h 27m
Deal found 8/8![Multiple Airlines logo]()
$574
This Delta deal was found by Cheapflights users on 8/8. 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 8/217:20 am -
2 stops25h 35m
Sat 8/2911:40 am -
1 stop32h 57m
Deal found 8/8![Delta logo]()
$590
This Air France deal was found by Cheapflights users on 8/8. 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 8/221:30 pm -
1 stop12h 50m
Sat 8/296:00 am -
1 stop14h 37m
Deal found 8/8![Air France logo]()
$554
This Delta deal was found by Cheapflights users on 8/8. 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
Sun 8/306:40 am -
1 stop19h 54m
Deal found 8/8![Delta logo]()
$570
This Air France deal was found by Cheapflights users on 8/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/231:30 pm -
1 stop12h 50m
Thu 9/36:40 am -
1 stop20h 03m
Deal found 8/10![Air France logo]()
$497
This Delta deal was found by Cheapflights users on 8/8. 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 8/231:50 pm -
1 stop12h 10m
Sat 8/292:35 pm -
1 stop30h 02m
Deal found 8/8![Delta logo]()
$509
This Delta deal was found by Cheapflights users on 8/8. 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 8/231:50 pm -
1 stop14h 40m
Mon 8/3110:15 am -
2 stops19h 20m
Deal found 8/8![Delta logo]()
$519
This Delta deal was found by Cheapflights users on 8/10. 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.
Sun 8/231:30 pm -
1 stop12h 50m
Thu 9/311:45 am -
2 stops20h 26m
Deal found 8/10![Delta logo]()
$572
This Ticket deal was found by Cheapflights users on 8/9. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:45 pm -
1 stop32h 15m
Mon 9/142:20 pm -
1 stop30h 27m
Deal found 8/9![Air France logo]()
$603
This Delta deal was found by Cheapflights users on 8/10. 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.
Wed 9/237:15 am -
2 stops19h 05m
Wed 9/3011:45 am -
2 stops20h 15m
Deal found 8/10![Delta logo]()
$616
This Air France deal was found by Cheapflights users on 8/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:50 pm -
1 stop14h 40m
Wed 9/306:00 am -
1 stop14h 47m
Deal found 8/10![Air France logo]()
$626
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 11, 2026.
Search for one-way flight options from Seattle to Billund. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Fri 8/2111:25 pm -
2 stops37h 15m
Deal found 8/8![Multiple Airlines logo]()
$413
This Orbitz deal was found by Cheapflights users on 8/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/212:10 pm -
1 stop34h 50m
Deal found 8/8![Lufthansa logo]()
$467
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 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $497 (KLM) |
One-way from | $413 (Kiwi.com) |
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 2,558,603 searches. Data last updated August 11, 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
$497
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
$502
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sat 8/22
7:15 am-9:35 am
2 stops17h 20m
Billund
Sun 8/30
6:40 am-5:34 pm
1 stop19h 54m
$570
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sun 8/23
1:30 pm-11:20 am
1 stop12h 50m
Billund
Thu 9/3
11:45 am-11:11 pm
2 stops20h 26m
$572
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 8/21
6:40 pm-10:25 pm
1 stop18h 45m
Billund
Mon 8/31
6:00 am-4:27 pm
1 stop19h 27m
$574
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 8/21
9:40 am-5:55 pm
2 stops23h 15m
Billund
Mon 8/31
4:00 pm-11:47 am
1 stop28h 47m
$590
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Wed 9/23
7:15 am-11:20 am
2 stops19h 05m
Billund
Wed 9/30
11:45 am-11:00 pm
2 stops20h 15m
$616
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 8/21
7:15 am-9:35 am
2 stops17h 20m
Billund
Sat 8/29
6:40 am-6:44 pm
2 stops21h 04m
$722
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Sun 1/31
7:20 am-10:25 am
2 stops42h 05m
Billund
Thu 2/4
10:55 am-7:05 pm
2 stops17h 10m
$743
Cheapest one-way
SeattleBillund
SEA Seattle/Tacoma Intl - BLL Billund
SEABLL
Seattle/Tacoma Intl
Fri 8/21
11:25 pm-9:40 pm
2 stops37h 15m
$413
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 11, 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
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
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
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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 2,558,603 searches. Data last updated August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$421 | Average$677 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$500 | Average$648 | FlexibilityNo cancel fee | On-time77% |