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Cheap flights from St. Louis to Ithaca from $348

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Ithaca departing on 6/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from St. Louis to Ithaca

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:03 pm - 11:46 pm
STL
-
ITH
9h 43m
2 stops
Delta Logo
1:34 pm - 11:36 pm
ITH
-
STL
11h 02m
2 stops
$424Delta
Wed, Apr 15 - Wed, Apr 22
Delta Logo
1:03 pm - 11:46 pm
STL
-
ITH
9h 43m
2 stops
Delta Logo
1:34 pm - 11:36 pm
ITH
-
STL
11h 02m
2 stops
$464Delta
Wed, Apr 15 - Wed, Apr 22
United Airlines Logo
7:45 am - 6:49 pm
STL
-
ITH
10h 04m
2 stops
United Airlines Logo
7:38 pm - 10:45 am
ITH
-
STL
16h 07m
2 stops
$563United Airlines
Sat, Apr 25 - Tue, Apr 28
United Airlines Logo
7:45 am - 6:49 pm
STL
-
ITH
10h 04m
2 stops
United Airlines Logo
7:38 pm - 9:13 pm
ITH
-
STL
26h 35m
2 stops
$594United Airlines
Sat, Apr 25 - Tue, Apr 28
Delta Logo
1:39 pm - 11:59 pm
STL
-
ITH
9h 20m
2 stops
Delta Logo
1:34 pm - 11:14 pm
ITH
-
STL
10h 40m
2 stops
$609Delta
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
7:45 am - 11:59 pm
STL
-
ITH
15h 14m
2 stops
United Airlines Logo
7:38 pm - 10:45 am
ITH
-
STL
16h 07m
2 stops
$619United Airlines
Sat, Apr 25 - Tue, Apr 28
Delta Logo
4:13 pm - 11:27 pm
STL
-
ITH
6h 14m
1 stop
Delta Logo
5:55 am - 3:57 pm
ITH
-
STL
11h 02m
2 stops
$629Delta
Thu, Aug 20 - Wed, Aug 26
Delta Logo
1:30 pm - 11:27 pm
STL
-
ITH
8h 57m
2 stops
Delta Logo
2:00 pm - 11:37 pm
ITH
-
STL
10h 37m
2 stops
$634Delta
Thu, Aug 20 - Wed, Aug 26
United Airlines Logo
7:45 am - 6:49 pm
STL
-
ITH
10h 04m
2 stops
United Airlines Logo
7:38 pm - 10:28 am
ITH
-
STL
15h 50m
1 stop
$640United Airlines
Sat, Apr 25 - Tue, Apr 28
United Airlines Logo
8:30 am - 9:48 am
STL
-
ITH
24h 18m
1 stop
United Airlines Logo
7:38 pm - 8:25 am
ITH
-
STL
13h 47m
2 stops
$683United Airlines
Wed, Apr 15 - Wed, Apr 22

Delta flights from St. Louis to Ithaca

Our best Delta deals on St. Louis to Ithaca flight tickets
Delta
Apr 15
STL1:03 pmLambert-St Louis
9h 43m
2 stops
ITH11:46 pmIthaca Tompkins County
Apr 22
ITH1:34 pmIthaca Tompkins County
11h 02m
2 stops
STL11:36 pmLambert-St Louis
$424
Delta
Apr 15
STL1:03 pmLambert-St Louis
9h 43m
2 stops
ITH11:46 pmIthaca Tompkins County
Apr 22
ITH1:34 pmIthaca Tompkins County
11h 02m
2 stops
STL11:36 pmLambert-St Louis
$464
Delta
Apr 9
STL1:39 pmLambert-St Louis
9h 20m
2 stops
ITH11:59 pmIthaca Tompkins County
Apr 13
ITH1:34 pmIthaca Tompkins County
10h 40m
2 stops
STL11:14 pmLambert-St Louis
$609

United Airlines flights from St. Louis to Ithaca

Our best United Airlines deals on St. Louis to Ithaca flight tickets
United Airlines
Apr 3
STL11:15 amLambert-St Louis
11h 44m
2 stops
ITH11:59 pmIthaca Tompkins County
Apr 5
ITH6:00 amIthaca Tompkins County
5h 28m
1 stop
STL10:28 amLambert-St Louis
$533
United Airlines
Apr 3
STL11:15 amLambert-St Louis
11h 44m
2 stops
ITH11:59 pmIthaca Tompkins County
Apr 5
ITH6:00 amIthaca Tompkins County
7h 22m
2 stops
STL12:22 pmLambert-St Louis
$539
United Airlines
Apr 25
STL7:45 amLambert-St Louis
10h 04m
2 stops
ITH6:49 pmIthaca Tompkins County
Apr 28
ITH7:38 pmIthaca Tompkins County
16h 07m
2 stops
STL10:45 amLambert-St Louis
$563

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Ithaca 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 29, 2026.
Use the filters below to find and compare flights from St. Louis to Ithaca that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Wed 4/15

1:03 pm-11:46 pm

2 stops9h 43m

Ithaca Tompkins County

Wed 4/22

1:34 pm-11:36 pm

2 stops11h 02m

$424

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Wed 4/15

1:03 pm-11:46 pm

2 stops9h 43m

Ithaca Tompkins County

Wed 4/22

1:34 pm-11:36 pm

2 stops11h 02m

$464

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Sat 4/25

7:45 am-6:49 pm

2 stops10h 04m

Ithaca Tompkins County

Tue 4/28

7:38 pm-10:45 am

2 stops16h 07m

$563

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Sat 4/25

7:45 am-6:49 pm

2 stops10h 04m

Ithaca Tompkins County

Tue 4/28

7:38 pm-9:13 pm

2 stops26h 35m

$594

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Thu 4/9

1:39 pm-11:59 pm

2 stops9h 20m

Ithaca Tompkins County

Mon 4/13

1:34 pm-11:14 pm

2 stops10h 40m

$609

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Sat 4/25

7:45 am-11:59 pm

2 stops15h 14m

Ithaca Tompkins County

Tue 4/28

7:38 pm-10:45 am

2 stops16h 07m

$619
Quickest round-trip

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Thu 8/20

4:13 pm-11:27 pm

1 stop6h 14m

Ithaca Tompkins County

Wed 8/26

5:55 am-3:57 pm

2 stops11h 02m

$629

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Thu 8/20

1:30 pm-11:27 pm

2 stops8h 57m

Ithaca Tompkins County

Wed 8/26

2:00 pm-11:37 pm

2 stops10h 37m

$634

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Sat 4/25

7:45 am-6:49 pm

2 stops10h 04m

Ithaca Tompkins County

Tue 4/28

7:38 pm-10:28 am

1 stop15h 50m

$640

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

Wed 4/15

8:30 am-9:48 am

1 stop24h 18m

Ithaca Tompkins County

Wed 4/22

7:38 pm-8:25 am

2 stops13h 47m

$683

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

See travel insights to Ithaca from

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

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

Can stopping save me money on St. Louis to Ithaca flights?

You could potentially save up to 15% on your flight if you consider stops on a St. Louis to Ithaca flight.

When to book flights from St. Louis to Ithaca

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

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

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

Fastest flight time

5h 34m

Direct flights

None
The fastest flight from St. Louis to Ithaca takes 5h 34m
There are no direct flights from St. Louis to Ithaca. There are no popular flight routes from St. Louis to Ithaca.
Search flight deals

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

    A flight from Lambert-St Louis to Ithaca Tompkins County will travel around 764.6 mi. A reasonable flight in good conditions will take 5h 34m.

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

    Prices for flights from Lambert-St Louis Airport to Ithaca Tompkins County Airport are refreshed on a daily basis.

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

  • What documentation or ID do you need to fly to Ithaca Tompkins County Airport?

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

Traveling to a place near Ithaca?

Book flights to Ithaca if you plan to visit one of these locations
Cortland
Penn Yan

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Ithaca for you.

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

momondo does allow users to show only those flights to Ithaca from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Ithaca from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Ithaca from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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