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Cheap flights from St. Louis to International Falls from $472

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to International Falls departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to International Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:21 am - 10:24 am
STL
-
INL
4h 03m
1 stop
Delta Logo
10:59 am - 4:46 pm
INL
-
STL
5h 47m
1 stop
$472Delta
Tue, May 12 - Sat, May 16
Delta Logo
6:21 am - 10:24 am
STL
-
INL
4h 03m
1 stop
Delta Logo
3:50 pm - 11:59 pm
INL
-
STL
8h 09m
2 stops
$482Delta
Tue, May 12 - Sat, May 16
Delta Logo
8:50 am - 2:20 pm
STL
-
INL
5h 30m
1 stop
Delta Logo
3:50 pm - 11:37 pm
INL
-
STL
7h 47m
2 stops
$778Delta
Wed, Aug 19 - Sat, Aug 22
Delta Logo
8:50 am - 2:20 pm
STL
-
INL
5h 30m
1 stop
Delta Logo
10:59 am - 2:31 pm
INL
-
STL
3h 32m
1 stop
$818Delta
Wed, Aug 19 - Sat, Aug 22
Delta Logo
6:30 am - 10:24 am
STL
-
INL
3h 54m
1 stop
Delta Logo
10:59 am - 4:45 pm
INL
-
STL
5h 46m
1 stop
$852Delta
Mon, Aug 17 - Thu, Aug 20
Delta Logo
8:48 am - 2:25 pm
STL
-
INL
5h 37m
1 stop
Delta Logo
11:03 am - 3:13 pm
INL
-
STL
4h 10m
1 stop
$862Delta
Tue, Jul 7 - Fri, Jul 10
Delta Logo
8:48 am - 2:25 pm
STL
-
INL
5h 37m
1 stop
Delta Logo
3:50 pm - 11:53 pm
INL
-
STL
8h 03m
2 stops
$872Delta
Tue, Jul 7 - Fri, Jul 10
Delta Logo
6:00 am - 2:25 pm
STL
-
INL
8h 25m
2 stops
Delta Logo
11:03 am - 10:15 pm
INL
-
STL
11h 12m
2 stops
$909Delta
Tue, Jul 7 - Fri, Jul 10
Delta Logo
8:50 am - 2:20 pm
STL
-
INL
5h 30m
1 stop
Delta Logo
3:50 pm - 11:37 pm
INL
-
STL
7h 47m
2 stops
$952Delta
Tue, Aug 18 - Fri, Aug 21
Delta Logo
6:00 am - 2:20 pm
STL
-
INL
8h 20m
2 stops
Delta Logo
3:50 pm - 11:37 pm
INL
-
STL
7h 47m
2 stops
$967Delta
Mon, Aug 17 - Thu, Aug 20

Delta flights from St. Louis to International Falls

Our best Delta deals on St. Louis to International Falls flight tickets
Delta
May 12
STL6:21 amLambert-St Louis
4h 03m
1 stop
INL10:24 amFalls Intl
May 16
INL10:59 amFalls Intl
5h 47m
1 stop
STL4:46 pmLambert-St Louis
$472
Delta
May 12
STL6:21 amLambert-St Louis
4h 03m
1 stop
INL10:24 amFalls Intl
May 16
INL3:50 pmFalls Intl
8h 09m
2 stops
STL11:59 pmLambert-St Louis
$482
Delta
Aug 19
STL8:50 amLambert-St Louis
5h 30m
1 stop
INL2:20 pmFalls Intl
Aug 22
INL3:50 pmFalls Intl
7h 47m
2 stops
STL11:37 pmLambert-St Louis
$778

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to International Falls 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, momondo users made 832,500 searches. Data last updated April 30, 2026.
Use the filters below to find and compare flights from St. Louis to International Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Tue 5/12

6:21 am-10:24 am

1 stop4h 03m

Falls Intl

Sat 5/16

10:59 am-4:46 pm

1 stop5h 47m

$472

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Tue 5/12

6:21 am-10:24 am

1 stop4h 03m

Falls Intl

Sat 5/16

3:50 pm-11:59 pm

2 stops8h 09m

$482

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Wed 8/19

8:50 am-2:20 pm

1 stop5h 30m

Falls Intl

Sat 8/22

3:50 pm-11:37 pm

2 stops7h 47m

$778
Quickest round-trip

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Wed 8/19

8:50 am-2:20 pm

1 stop5h 30m

Falls Intl

Sat 8/22

10:59 am-2:31 pm

1 stop3h 32m

$818

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Mon 8/17

6:30 am-10:24 am

1 stop3h 54m

Falls Intl

Thu 8/20

10:59 am-4:45 pm

1 stop5h 46m

$852

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Tue 7/7

8:48 am-2:25 pm

1 stop5h 37m

Falls Intl

Fri 7/10

11:03 am-3:13 pm

1 stop4h 10m

$862

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Tue 7/7

8:48 am-2:25 pm

1 stop5h 37m

Falls Intl

Fri 7/10

3:50 pm-11:53 pm

2 stops8h 03m

$872

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Tue 7/7

6:00 am-2:25 pm

2 stops8h 25m

Falls Intl

Fri 7/10

11:03 am-10:15 pm

2 stops11h 12m

$909

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Tue 8/18

8:50 am-2:20 pm

1 stop5h 30m

Falls Intl

Fri 8/21

3:50 pm-11:37 pm

2 stops7h 47m

$952

St. LouisInternational Falls

STL - INL

STLINL

Lambert-St Louis

Mon 8/17

6:00 am-2:20 pm

2 stops8h 20m

Falls Intl

Thu 8/20

3:50 pm-11:37 pm

2 stops7h 47m

$967

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to International Falls

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to International Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to International Falls (STL to INL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to International Falls

Fastest flight time

3h 54m

Direct flights

None
The fastest flight from St. Louis to International Falls takes 3h 54m
There are no direct flights from St. Louis to International Falls. There are no popular flight routes from St. Louis to International Falls.
Search flight deals

Frequently asked questions about flying from St. Louis to International Falls

  • How far is Lambert-St Louis to Falls Intl by plane?

    The straight-line distance from Lambert-St Louis to Falls Intl is 707.0 mi. By plane, this route typically takes 3h 54m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Falls Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Falls Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Lambert-St Louis Airport to Falls Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Falls Intl Airport.

  • What documentation or ID do you need to fly to Falls Intl Airport?

    The travel and health documents required for your trip to Falls Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Falls Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from St. Louis to International Falls

  • How do I get Price Alerts for flights from St. Louis to International Falls?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from International Falls. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from St. Louis to International Falls with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to International Falls?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to International Falls. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to International Falls with flexible booking policies on momondo?

All flight searches from St. Louis to International Falls on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to International Falls?

momondo helps you find the best flight between St. Louis and International Falls by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to International Falls right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to International Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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