In terms of precipitation, rainfall in Thief River Falls ranges from 0.5 - 3.5 inches per month. July is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Thief River Falls when rainfall is around 0.5 in.

If weather is an important factor for your trip to Thief River Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.4 F).

What is the cheapest time of day to fly from PDX to TVF?

When flying from Portland to Thief River Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most trusted provider : When it comes to deals on Portland-Thief River Falls 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-Thief River Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Portland to Thief River Falls that include hotel bookings?

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

How can I find direct flights from Portland to Thief River Falls?

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

Can I find deals for business class flights from Portland to Thief River Falls?

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

$499+ Flights from Portland to Thief River Falls

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Cheap flight deals from Portland to Thief River Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$499 (United)

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Cheapest flights from Portland to Thief River Falls
Explore the most affordable flight options available from Portland to Thief River Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

Wed 10/296:00 amPDX - TVF

2 stops10h 00mMultiple Airlines

Wed 11/58:15 amTVF - PDX

2 stops14h 23mMultiple Airlines

Deal found 9/22

$499

Best flights from Portland to Thief River Falls
Discover carefully curated flight deals from Portland to Thief River Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2025.

Wed 10/296:00 amPDX - TVF

2 stops10h 00mMultiple Airlines

Wed 11/58:15 amTVF - PDX

2 stops14h 23mMultiple Airlines

Deal found 9/22

$499

Last-minute flights from Portland to Thief River Falls
Discover last-minute flight deals from Portland to Thief River Falls. Data last updated September 25, 2025 and is based on user searches.

Wed 10/296:00 amPDX - TVF

2 stops10h 00mMultiple Airlines

Wed 11/58:15 amTVF - PDX

2 stops14h 23mMultiple Airlines

Deal found 9/22

$499

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Thief River Falls that are best for you.

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Price

PortlandThief River Falls

PDX - TVF

PDXTVF

Portland

Wed 10/29

6:00 am-6:00 pm

2 stops10h 00m

Thief River Falls

Wed 11/5

8:15 am-8:38 pm

2 stops14h 23m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/22

Compare providers for flights from Portland to Thief River Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Thief River Falls in September.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

Have a flexible travel schedule? Discover the best time to fly to Thief River Falls 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

Can I find deals for flights from Portland to Thief River Falls that include hotel bookings?
Yes. In addition to deals on Portland to Thief River Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portland to Thief River Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Thief River Falls.
Can I find deals for business class flights from Portland to Thief River Falls?
Yes. Cheapflights offers flight deals from Portland to Thief River Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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$499+ Cheap flights from Portland to Thief River Falls (PDX - TVF)

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Thief River Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portland to Thief River Falls

Most accurate provider

Most trusted provider

Round-trip from

Find flight deals from Portland to Thief River Falls

Cheapest flights from Portland to Thief River FallsExplore the most affordable flight options available from Portland to Thief River Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

Explore the most affordable flight options available from Portland to Thief River Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Thief River Falls that are best for you.

Compare providers for flights from Portland to Thief River Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Thief River Falls in September.

Best time to book a flight from Portland to Thief River Falls

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

Related info for your journey

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

Can I find deals for flights from Portland to Thief River Falls that include hotel bookings?

How can I find direct flights from Portland to Thief River Falls?

Can I find deals for business class flights from Portland to Thief River Falls?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Thief River Falls

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Cheapest flights from Portland to Thief River Falls
Explore the most affordable flight options available from Portland to Thief River Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.