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Cheap flights from Ithaca to St. Louis from $314

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ithaca to St. Louis departing on 9/3. 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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0 bags

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Find the cheapest flights from Ithaca to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:33 pm - 8:42 pm
ITH
-
STL
8h 09m
2 stops
Delta Logo
9:59 am - 11:46 pm
STL
-
ITH
12h 47m
2 stops
$459Delta
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
6:00 am - 10:31 am
ITH
-
STL
5h 31m
1 stop
United Airlines Logo
7:45 am - 6:49 pm
STL
-
ITH
10h 04m
2 stops
$537United Airlines
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
6:00 am - 12:22 pm
ITH
-
STL
7h 22m
2 stops
United Airlines Logo
7:45 am - 6:49 pm
STL
-
ITH
10h 04m
2 stops
$542United Airlines
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
10:30 am - 9:13 pm
ITH
-
STL
11h 43m
2 stops
United Airlines Logo
7:45 am - 9:48 am
STL
-
ITH
25h 03m
2 stops
$640United Airlines
Mon, Apr 13 - Fri, Apr 17
United Airlines Logo
6:00 am - 10:28 am
ITH
-
STL
5h 28m
1 stop
United Airlines Logo
11:15 am - 11:59 pm
STL
-
ITH
11h 44m
2 stops
$732United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
6:00 am - 2:24 pm
ITH
-
STL
9h 24m
2 stops
United Airlines Logo
11:15 am - 11:59 pm
STL
-
ITH
11h 44m
2 stops
$852United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
6:00 am - 10:28 am
ITH
-
STL
5h 28m
1 stop
United Airlines Logo
11:15 am - 11:59 pm
STL
-
ITH
11h 44m
2 stops
$875United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
6:00 am - 10:28 am
ITH
-
STL
5h 28m
1 stop
United Airlines Logo
11:15 am - 11:59 pm
STL
-
ITH
11h 44m
2 stops
$895United Airlines
Thu, Apr 9 - Mon, Apr 13
Delta Logo
1:34 pm - 8:44 pm
ITH
-
STL
8h 10m
2 stops
Delta Logo
1:02 pm - 11:46 pm
STL
-
ITH
9h 44m
2 stops
$961Delta
Mon, Apr 13 - Fri, Apr 17
United Airlines Logo
10:25 am - 9:22 pm
ITH
-
STL
11h 57m
2 stops
United Airlines Logo
12:30 pm - 11:30 pm
STL
-
ITH
10h 00m
2 stops
$966United Airlines
Wed, Aug 19 - Sat, Aug 22

Delta flights from Ithaca to St. Louis

Our best Delta deals on Ithaca to St. Louis flight tickets
Delta
Apr 9
ITH1:33 pmIthaca Tompkins County
8h 09m
2 stops
STL8:42 pmLambert-St Louis
Apr 13
STL9:59 amLambert-St Louis
12h 47m
2 stops
ITH11:46 pmIthaca Tompkins County
$459
Delta
Apr 13
ITH1:34 pmIthaca Tompkins County
8h 10m
2 stops
STL8:44 pmLambert-St Louis
Apr 17
STL1:02 pmLambert-St Louis
9h 44m
2 stops
ITH11:46 pmIthaca Tompkins County
$961

United Airlines flights from Ithaca to St. Louis

Our best United Airlines deals on Ithaca to St. Louis flight tickets
United Airlines
Apr 18
ITH6:00 amIthaca Tompkins County
5h 31m
1 stop
STL10:31 amLambert-St Louis
Apr 25
STL7:45 amLambert-St Louis
10h 04m
2 stops
ITH6:49 pmIthaca Tompkins County
$537
United Airlines
Apr 18
ITH6:00 amIthaca Tompkins County
7h 22m
2 stops
STL12:22 pmLambert-St Louis
Apr 25
STL7:45 amLambert-St Louis
10h 04m
2 stops
ITH6:49 pmIthaca Tompkins County
$542
United Airlines
Apr 13
ITH10:30 amIthaca Tompkins County
11h 43m
2 stops
STL9:13 pmLambert-St Louis
Apr 17
STL7:45 amLambert-St Louis
25h 03m
2 stops
ITH9:48 amIthaca Tompkins County
$640

momondo Fare Finder

 
Customize your flight search to find flights from Ithaca to St. Louis 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 March 30, 2026.
Use the filters below to find and compare flights from Ithaca to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Thu 4/9

1:33 pm-8:42 pm

2 stops8h 09m

Lambert-St Louis

Mon 4/13

9:59 am-11:46 pm

2 stops12h 47m

$459
Quickest round-trip

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Sat 4/18

6:00 am-10:31 am

1 stop5h 31m

Lambert-St Louis

Sat 4/25

7:45 am-6:49 pm

2 stops10h 04m

$537

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Sat 4/18

6:00 am-12:22 pm

2 stops7h 22m

Lambert-St Louis

Sat 4/25

7:45 am-6:49 pm

2 stops10h 04m

$542

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Mon 4/13

10:30 am-9:13 pm

2 stops11h 43m

Lambert-St Louis

Fri 4/17

7:45 am-9:48 am

2 stops25h 03m

$640

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Thu 4/9

6:00 am-10:28 am

1 stop5h 28m

Lambert-St Louis

Mon 4/13

11:15 am-11:59 pm

2 stops11h 44m

$732

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Thu 4/9

6:00 am-2:24 pm

2 stops9h 24m

Lambert-St Louis

Mon 4/13

11:15 am-11:59 pm

2 stops11h 44m

$852

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Thu 4/9

6:00 am-10:28 am

1 stop5h 28m

Lambert-St Louis

Mon 4/13

11:15 am-11:59 pm

2 stops11h 44m

$875

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Thu 4/9

6:00 am-10:28 am

1 stop5h 28m

Lambert-St Louis

Mon 4/13

11:15 am-11:59 pm

2 stops11h 44m

$895

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Mon 4/13

1:34 pm-8:44 pm

2 stops8h 10m

Lambert-St Louis

Fri 4/17

1:02 pm-11:46 pm

2 stops9h 44m

$961

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Wed 8/19

10:25 am-9:22 pm

2 stops11h 57m

Lambert-St Louis

Sat 8/22

12:30 pm-11:30 pm

2 stops10h 00m

$966

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Ithaca to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ithaca Tompkins County to Lambert-St Louis?

Delta and United Airlines are the most popular carriers operating from Ithaca Tompkins County to Lambert-St Louis

What airlines fly to St. Louis?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to St. Louis from Ithaca according to our data. Delta is the first choice among our users, with 51% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

When to book flights from Ithaca to St. Louis

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

Cheap Ithaca to St. Louis (ITH to STL) flight deals and tips

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

Fastest flight time

5h 28m

Direct flights

None
The fastest flight from Ithaca to St. Louis takes 5h 28m
There are no direct flights from Ithaca to St. Louis. There are no popular flight routes from Ithaca to St. Louis.
Search flight deals

  • How far is Ithaca Tompkins County to Lambert-St Louis by plane?

    The distance between Ithaca Tompkins County and Lambert-St Louis is about 764.6 mi. 5h 28m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ithaca Tompkins County Airport to Lambert-St Louis Airport?

    Prices for flights from Ithaca Tompkins County Airport to Lambert-St Louis Airport were last updated today.

  • How old do you have to be to fly from Ithaca Tompkins County Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ithaca Tompkins County Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis 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 Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
Shrewsbury
Grafton

Why use momondo?

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

Finding the right flight to St. Louis from Ithaca is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Ithaca with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ithaca to St. Louis.

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

Yes. momondo can track prices for Ithaca to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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