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$1,039+ Cheap flights from Ontario to Grand Forks (ONT - GFK)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GFK
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
1 adult, Economy
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Cheap flight deals from Ontario to Grand Forks

Cheapest flights from Ontario to Grand Forks
Explore the most affordable flight options available from Ontario to Grand Forks. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

This Delta deal was found by Cheapflights users on 12/3. 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 12/181:29 pmONT - GFK
2 stops7h 38mDelta
Tue 12/305:00 amGFK - ONT
2 stops9h 29mDelta
Deal found 12/3$1,039

Find flight deals from Ontario to Grand Forks

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Grand Forks (GFK). 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 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,039
(Delta)

Popular in

November

Cheapest in

September

Average price

$885
Provider with most accurate pricing for Ontario-Grand Forks flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Grand Forks flights.
Search Deals
From Ontario to Grand Forks
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($188 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($41 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 Ontario to Grand Forks 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 3, 2025.
Use the filters below to find and compare flights from Ontario to Grand Forks that are best for you.

Fly from

Ontario

Fly to

Grand Forks

Route

Depart

Return

Price

OntarioGrand Forks

ONT - GFK

ONTGFK

Ontario

Thu 12/18

1:29 pm-11:07 pm

2 stops7h 38m

Grand Forks

Tue 12/30

5:00 am-12:29 pm

2 stops9h 29m

$1,039

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

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

Have a flexible travel schedule? Discover the best time to fly to Grand Forks from Ontario 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Grand Forks

What is the cheapest month to book a flight from Ontario to Grand Forks?

Currently, November is the cheapest month in which you can book a flight from Ontario to Grand Forks (average of $146). Flying from Ontario to Grand Forks in July is currently the most expensive (average of $354). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Grand Forks. 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 Ontario to Grand Forks?

    A quick flight from Ontario to Grand Forks can take about 7h 38m. Delta provides one of the quickest options available for as low as $1,039. The distance from Ontario to Grand Forks is about 1424 mi.

  • Can I find deals for flights from Ontario to Grand Forks that include hotel bookings?

    Yes. In addition to deals on Ontario to Grand Forks flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Grand Forks?

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

  • Can I find deals for business class flights from Ontario to Grand Forks?

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

  • What is the cheapest month to book a flight from Ontario to Grand Forks?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Grand Forks (average of $146). Flying from Ontario to Grand Forks in July is currently the most expensive (average of $354). 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.

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