HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billund

$551+ Cheap flights from Portland (PDX) 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BLL
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Billund with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 Portland to Billund

Cheapest flights from Portland to Billund
Explore the most affordable flight options available from Portland to Billund. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 10, 2025.

This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:55 pmPDX - BLL
2 stops25h 05mUnited Airlines
Sun 1/410:25 amBLL - PDX
2 stops40h 07mUnited Airlines
Deal found 12/9$1,709
This oojo deal was found by Cheapflights users on 12/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:42 pmPDX - BLL
2 stops20h 18mBritish Airways
Sun 1/41:15 pmBLL - PDX
1 stop35h 40mBritish Airways
Deal found 12/9$3,274
This Air Canada deal was found by Cheapflights users on 12/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:50 amPDX - BLL
2 stops18h 30mMultiple Airlines
Sun 1/46:30 amBLL - PDX
3 stops25h 13mMultiple Airlines
Deal found 12/9$3,823
This Air Canada deal was found by Cheapflights users on 12/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:55 pmPDX - BLL
3 stops25h 05mAir Canada
Sun 1/46:30 amBLL - PDX
3 stops25h 13mAir Canada
Deal found 12/9$3,858

Find flight deals from Portland to Billund

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 December 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$551
(United Airlines)

Popular in

April

Cheapest in

December

Average price

$571
Provider with most accurate pricing for Portland-Billund flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Billund flights.
Search Deals
From Portland to Billund
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($420 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease ($166 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 December 10, 2025.
Use the filters below to find and compare flights from Portland to Billund that are best for you.

Fly from

Portland

Fly to

Billund

Route

Depart

Return

Price

PortlandBillund

PDX - BLL

PDXBLL

Portland

Thu 1/22

5:35 am-1:20 pm

2 stops22h 45m

Billund

Thu 1/29

6:30 am-6:56 pm

2 stops21h 26m

$551

PortlandBillund

PDX - BLL

PDXBLL

Portland

Wed 1/21

7:45 am-1:25 pm

2 stops20h 40m

Billund

Sun 1/25

10:25 am-9:49 pm

2 stops20h 24m

$551

PortlandBillund

PDX - BLL

PDXBLL

Portland

Fri 1/23

7:45 am-1:20 pm

2 stops20h 35m

Billund

Fri 1/30

2:05 pm-12:43 am

2 stops19h 38m

$551

PortlandBillund

PDX - BLL

PDXBLL

Portland

Wed 1/21

5:45 pm-12:05 pm

1 stop33h 20m

Billund

Sun 1/25

8:50 pm-8:47 pm

2 stops32h 57m

$737

PortlandBillund

PDX - BLL

PDXBLL

Portland

Sat 12/27

11:55 pm-10:00 am

2 stops25h 05m

Billund

Sun 1/4

10:25 am-5:32 pm

2 stops40h 07m

$1,709

PortlandBillund

PDX - BLL

PDXBLL

Portland

Sat 12/27

2:42 pm-8:00 pm

2 stops20h 18m

Billund

Sun 1/4

1:15 pm-3:55 pm

1 stop35h 40m

$3,274

PortlandBillund

PDX - BLL

PDXBLL

Portland

Sat 12/27

9:50 am-1:20 pm

2 stops18h 30m

Billund

Sun 1/4

6:30 am-10:43 pm

3 stops25h 13m

$3,823

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

  • Most accurate provider: When it comes to deals on Portland-Billund flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Billund flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Billund flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-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 Portland-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 Portland to Billund

Have a flexible travel schedule? Discover the best time to fly to Billund from Portland with our price prediction graph.
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.

Related info for your journey

Find useful and relevant information for your journey from Portland to Billund. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Billund?

    Airlines like United Airlines fly from Portland to Billund in about 22h 45m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4892 mi.

  • Can I find deals for flights from Portland to Billund that include hotel bookings?

    Yes. In addition to deals on Portland to Billund flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Billund?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Billund.

  • Can I find deals for business class flights from Portland to Billund?

    Yes. Cheapflights offers flight deals from Portland to Billund by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Billund

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Copenhagen flights
Eugene to Copenhagen flights
Boise to Copenhagen flights
Redmond to Copenhagen flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.