What is the cheapest airline to fly from Grand Forks to St. Louis round-trip?

Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $416.

What is the cheapest day to fly from Grand Forks to St. Louis?

Travelers seeking maximum savings on their Grand Forks to St. Louis flight should consider departing on Thursday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest day to fly round-trip from Grand Forks to St. Louis?

Departing on a Wednesday is a good option for securing a great price. You can expect to save up to 23% when planning your travel around this day of the week.

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

Unlike in the morning, when flights are generally more expensive, you can save up to 11% on flights from Grand Forks to St. Louis by exploring options for tickets at noon.

Can I find deals for flights from Grand Forks to St. Louis that include hotel bookings?

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

How can I find direct flights from Grand Forks to St. Louis?

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

Can I find deals for business class flights from Grand Forks to St. Louis?

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

$189+ Flights from Grand Forks to St. Louis

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Cheap flight deals from Grand Forks to St. Louis

Round-trip from	$421 (Delta)
One-way from	$189 (Kiwi.com)

From Grand Forks to Lambert-St Louis

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One-way flight from Grand Forks to Lambert-St Louis

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Find flight deals from Grand Forks to St. Louis

Cheapest flights from Grand Forks to St. Louis
Explore the most affordable flight options available from Grand Forks to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

mié. 9/105:05 amGFK - STL

1 stop3h 31mDelta

dom. 9/216:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/14

$421

jue. 9/115:03 amGFK - STL

1 stop18h 06mDelta

jue. 9/186:00 amSTL - GFK

1 stop9h 39mDelta

Deal found 8/14

$494

jue. 8/285:05 amGFK - STL

1 stop3h 31mDelta

lun. 9/16:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/13

$498

mar. 9/2312:21 pmGFK - STL

1 stop4h 24mDelta

vie. 9/266:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/14

$591

lun. 9/154:19 pmGFK - STL

1 stop6h 50mDelta

jue. 9/1812:15 pmSTL - GFK

1 stop3h 24mDelta

Deal found 8/13

$597

Best flights from Grand Forks to St. Louis
Discover carefully curated flight deals from Grand Forks to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

mié. 9/105:05 amGFK - STL

1 stop3h 31mDelta

dom. 9/216:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/14

$421

jue. 9/115:03 amGFK - STL

1 stop18h 06mDelta

jue. 9/186:00 amSTL - GFK

1 stop9h 39mDelta

Deal found 8/14

$494

jue. 8/285:05 amGFK - STL

1 stop3h 31mDelta

lun. 9/16:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/13

$498

mar. 9/2312:21 pmGFK - STL

1 stop4h 24mDelta

vie. 9/266:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/14

$591

lun. 9/154:19 pmGFK - STL

1 stop6h 50mDelta

jue. 9/1812:15 pmSTL - GFK

1 stop3h 24mDelta

Deal found 8/13

$597

Last-minute flights from Grand Forks to St. Louis
Discover last-minute flight deals from Grand Forks to St. Louis. Data last updated agosto 14, 2025 and is based on user searches.

mar. 8/195:05 amGFK - STL

1 stop3h 31mDelta

vie. 8/225:30 pmSTL - GFK

1 stop5h 36mDelta

Deal found 8/14

$947

jue. 8/285:05 amGFK - STL

1 stop3h 31mDelta

lun. 9/16:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/13

$498

mié. 9/105:05 amGFK - STL

1 stop3h 31mDelta

dom. 9/216:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/14

$421

jue. 9/115:03 amGFK - STL

1 stop18h 06mDelta

jue. 9/186:00 amSTL - GFK

1 stop9h 39mDelta

Deal found 8/14

$494

lun. 9/154:19 pmGFK - STL

1 stop6h 50mDelta

jue. 9/1812:15 pmSTL - GFK

1 stop3h 24mDelta

Deal found 8/13

$597

mar. 9/2312:21 pmGFK - STL

1 stop4h 24mDelta

vie. 9/266:00 amSTL - GFK

1 stop5h 33mDelta

Deal found 8/14

$591

One-way flights from Grand Forks to St. Louis
Search for one-way flight options from Grand Forks to St. Louis. Find affordable one-way fares based on user searches. Data last updated agosto 14, 2025.

jue. 9/112:54 pmGFK - STL

2 stops18h 12mMultiple Airlines

Deal found 8/14

$189

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

mié. 9/10

5:05 am-8:36 am

1 stop3h 31m

Lambert-St Louis

dom. 9/21

6:00 am-11:33 am

1 stop5h 33m

$421

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

jue. 9/11

5:03 am-11:09 pm

1 stop18h 06m

Lambert-St Louis

jue. 9/18

6:00 am-3:39 pm

1 stop9h 39m

$494

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

jue. 8/28

5:05 am-8:36 am

1 stop3h 31m

Lambert-St Louis

lun. 9/1

6:00 am-11:33 am

1 stop5h 33m

$498

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

mar. 9/23

12:21 pm-4:45 pm

1 stop4h 24m

Lambert-St Louis

vie. 9/26

6:00 am-11:33 am

1 stop5h 33m

$591

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

lun. 9/15

4:19 pm-11:09 pm

1 stop6h 50m

Lambert-St Louis

jue. 9/18

12:15 pm-3:39 pm

1 stop3h 24m

$597

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

jue. 9/11

2:54 pm-9:06 am

2 stops18h 12m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Grand Forks to St. Louis

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

What is the cheapest month to book a flight from Grand Forks to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Grand Forks to St. Louis (average of $311). Flying from Grand Forks to St. Louis in March is currently the most expensive (average of $356). 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.

Reviews of airlines servicing St. Louis

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

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What is the cheapest airline to fly from Grand Forks to St. Louis round-trip?
Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $416.
Can I find deals for flights from Grand Forks to St. Louis that include hotel bookings?
Yes. In addition to deals on Grand Forks to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Grand Forks to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Grand Forks to St. Louis.
Can I find deals for business class flights from Grand Forks to St. Louis?
Yes. Cheapflights offers flight deals from Grand Forks to St. Louis 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 Grand Forks to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Grand Forks to St. Louis (average of $311). Flying from Grand Forks to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

O'Fallon

Fairview Heights

Maryland Heights

Collinsville

Eureka

St. Peters

Glencoe

Alton

Chesterfield

Farmington

Festus

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Grand Forks to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$416	Average$458	FlexibilityNo cancel fee	On-timeN/A

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$189+ Cheap flights from Grand Forks to St. Louis (GFK - STL)

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 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 St. Louis 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 St. Louis

Round-trip from

One-way from

Find flight deals from Grand Forks to St. Louis

Cheapest flights from Grand Forks to St. LouisExplore the most affordable flight options available from Grand Forks to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Explore the most affordable flight options available from Grand Forks to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Grand Forks to St. Louis

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

Cheapflights Insights

Everything you need to know about your flight from Grand Forks to St. Louis

What is the cheapest month to book a flight from Grand Forks to St. Louis?

Reviews of airlines servicing St. Louis

See what other customers who have flown with Delta from Grand Forks to St. Louis 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 St. Louis. 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 St. Louis round-trip?

Can I find deals for flights from Grand Forks to St. Louis that include hotel bookings?

How can I find direct flights from Grand Forks to St. Louis?

Can I find deals for business class flights from Grand Forks to St. Louis?

What is the cheapest month to book a flight from Grand Forks to St. Louis?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Grand Forks to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Grand Forks to St. Louis

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Book with Flexibility

Travel Smart

Cheapest flights from Grand Forks to St. Louis
Explore the most affordable flight options available from Grand Forks to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.