What is the cheapest airline to fly from Grand Forks to Philadelphia round-trip?

Delta, at $368, was found to be the cheapest airline from Grand Forks to Philadelphia..

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

If weather is an important factor for your trip to Philadelphia, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

What is the cheapest time of day to fly from GFK to PHL?

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

Most trusted provider : When it comes to deals on Grand Forks-Philadelphia 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 Grand Forks-Philadelphia 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 Grand Forks to Philadelphia that include hotel bookings?

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

How can I find direct flights from Grand Forks to Philadelphia?

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

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

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

$564+ Cheap Flights from Grand Forks to Philadelphia

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Cheap flight deals from Grand Forks to Philadelphia

Cheapest

Best

Cheapest flights from Grand Forks to Philadelphia
Explore the most affordable flight options available from Grand Forks to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.

Fri 9/1110:45 am

GFK

PHL

1 stop5h 34m

Delta

Tue 9/155:45 am

PHL

GFK

1 stop5h 25m

Delta

Deal found 6/10

$564

Find flight deals from Grand Forks to Philadelphia

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars

Provider with most accurate pricing for Grand Forks-Philadelphia flight deals.

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Provider most trusted by Cheapflights users for Grand Forks-Philadelphia flights.

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Use the filters below to find and compare flights from Grand Forks to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Grand ForksPhiladelphia

GFK - PHL

GFKPHL

Grand Forks

Fri 9/11

10:45 am-5:19 pm

1 stop5h 34m

Philadelphia

Tue 9/15

5:45 am-10:10 am

1 stop5h 25m

$564

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Sorted by cheapest first

Compare providers for flights from Grand Forks to Philadelphia

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Grand Forks to Philadelphia in June.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 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 Grand Forks-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Grand Forks-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Grand Forks-Philadelphia flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Grand Forks-Philadelphia 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 Grand Forks-Philadelphia 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 Grand Forks to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Grand Forks with our price prediction graph.

GFK-PHL

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 Philadelphia

See what other customers who have flown with Delta from Grand Forks to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,396 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Delta

7.9

Good

8,396 reviews

Delta

7.9

Good

8,396 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

What is the cheapest airline to fly from Grand Forks to Philadelphia round-trip?
Delta, at $368, was found to be the cheapest airline from Grand Forks to Philadelphia..
Can I find deals for flights from Grand Forks to Philadelphia that include hotel bookings?
Yes. In addition to deals on Grand Forks to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Grand Forks to Philadelphia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Grand Forks to Philadelphia.
Can I find deals for business class flights from Grand Forks to Philadelphia?
Yes. Cheapflights offers flight deals from Grand Forks to Philadelphia 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

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Top airline flying from Grand Forks to Philadelphia

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$368	Average$692	FlexibilityNo cancel fee	On-timeN/A

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$564+ Cheap flights from Grand Forks to Philadelphia (GFK - PHL)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Grand Forks to Philadelphia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Grand Forks to Philadelphia

Cheapest flights from Grand Forks to PhiladelphiaExplore the most affordable flight options available from Grand Forks to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.

Explore the most affordable flight options available from Grand Forks to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.

Best flights from Grand Forks to PhiladelphiaDiscover carefully curated flight deals from Grand Forks to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.

Discover carefully curated flight deals from Grand Forks to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.

Find flight deals from Grand Forks to Philadelphia

Most accurate provider

Most trusted provider

Cheapflights Fare Finder

Use the filters below to find and compare flights from Grand Forks to Philadelphia that are best for you.

Compare providers for flights from Grand Forks to Philadelphia

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 Grand Forks to Philadelphia in June.

Best time to book a flight from Grand Forks to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Grand Forks with our price prediction graph.

Reviews of airlines servicing Philadelphia

See what other customers who have flown with Delta from Grand Forks to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What is the cheapest airline to fly from Grand Forks to Philadelphia round-trip?

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

How can I find direct flights from Grand Forks to Philadelphia?

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

Traveling to a place near Philadelphia?

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Alternative routes for Grand Forks to Philadelphia

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Complete your trip

Complete your trip to Philadelphia by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Grand Forks to Philadelphia by cabin class

Find flights from Grand Forks to Philadelphia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Grand Forks and Philadelphia flights

Browse other Grand Forks and Philadelphia flight options. Last updated on June 10, 2026.

Other flights from Grand Forks

Browse through other flights departing from Grand Forks. Flights are based on user searches made on Cheapflights and were last updated on June 10, 2026.

Other flights to Philadelphia

Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 10, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Grand Forks to Philadelphia

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Book with Flexibility

Travel Smart

Cheapest flights from Grand Forks to Philadelphia
Explore the most affordable flight options available from Grand Forks to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.

Best flights from Grand Forks to Philadelphia
Discover carefully curated flight deals from Grand Forks to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.