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Cheap flights from St. Louis to Ithaca from $375

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 10/27. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:10 pm - 12:21 amSTL-ITH
7h 11m1 stop
Delta Logo
5:40 am - 4:43 pmITH-STL
12h 03m1 stop
$447Delta
Find Deal
sáb., nov. 1 - mar., nov. 4
Delta Logo
4:10 pm - 12:21 amSTL-ITH
7h 11m1 stop
Delta Logo
5:40 am - 4:43 pmITH-STL
12h 03m1 stop
$452Delta
Find Deal
sáb., nov. 1 - mar., nov. 4
Delta Logo
4:10 pm - 12:21 amSTL-ITH
7h 11m1 stop
Delta Logo
5:40 am - 10:04 pmITH-STL
17h 24m2 stops
$460Delta
Find Deal
sáb., nov. 1 - mar., nov. 4
United Airlines Logo
9:00 am - 11:43 pmSTL-ITH
13h 43m2 stops
United Airlines Logo
6:10 am - 2:25 pmITH-STL
9h 15m2 stops
$512United Airlines
Find Deal
jue., dic. 4 - dom., dic. 7
United Airlines Logo
1:10 pm - 6:28 pmSTL-ITH
4h 18m1 stop
United Airlines Logo
7:40 pm - 5:39 pmITH-STL
22h 59m2 stops
$531United Airlines
Find Deal
sáb., nov. 1 - mar., nov. 4
United Airlines Logo
8:00 am - 6:28 pmSTL-ITH
9h 28m2 stops
United Airlines Logo
7:40 pm - 10:40 amITH-STL
16h 00m2 stops
$536United Airlines
Find Deal
sáb., nov. 1 - mar., nov. 4
United Airlines Logo
8:30 am - 11:43 pmSTL-ITH
14h 13m1 stop
United Airlines Logo
6:10 am - 2:25 pmITH-STL
9h 15m2 stops
$613United Airlines
Find Deal
jue., dic. 4 - dom., dic. 7
United Airlines Logo
3:14 pm - 11:43 pmSTL-ITH
7h 29m2 stops
United Airlines Logo
7:40 pm - 12:28 pmITH-STL
17h 48m2 stops
$658United Airlines
Find Deal
mar., nov. 4 - sáb., nov. 8
United Airlines Logo
3:14 pm - 11:43 pmSTL-ITH
7h 29m2 stops
United Airlines Logo
7:40 pm - 10:07 amITH-STL
15h 27m1 stop
$664United Airlines
Find Deal
mar., nov. 4 - sáb., nov. 8
United Airlines Logo
10:00 am - 6:28 pmSTL-ITH
7h 28m2 stops
United Airlines Logo
7:40 pm - 10:22 pmITH-STL
27h 42m3 stops
$672United Airlines
Find Deal
sáb., nov. 1 - mar., nov. 4

Delta flights from St. Louis to Ithaca

Our best Delta deals on St. Louis to Ithaca flight tickets
Delta
Nov 1
STL4:10 pmLambert-St Louis
7h 11m
1 stop
ITH12:21 amIthaca Tompkins County
Nov 4
ITH5:40 amIthaca Tompkins County
12h 03m
1 stop
STL4:43 pmLambert-St Louis
$447
Find similar
Delta
Nov 1
STL4:10 pmLambert-St Louis
7h 11m
1 stop
ITH12:21 amIthaca Tompkins County
Nov 4
ITH5:40 amIthaca Tompkins County
12h 03m
1 stop
STL4:43 pmLambert-St Louis
$452
Find similar
Delta
Nov 1
STL4:10 pmLambert-St Louis
7h 11m
1 stop
ITH12:21 amIthaca Tompkins County
Nov 4
ITH5:40 amIthaca Tompkins County
17h 24m
2 stops
STL10:04 pmLambert-St Louis
$460
Find similar

United Airlines flights from St. Louis to Ithaca

Our best United Airlines deals on St. Louis to Ithaca flight tickets
United Airlines
Oct 24
STL12:25 pmLambert-St Louis
10h 18m
2 stops
ITH11:43 pmIthaca Tompkins County
Oct 26
ITH6:10 amIthaca Tompkins County
9h 15m
2 stops
STL2:25 pmLambert-St Louis
$441
Find similar
United Airlines
Oct 23
STL12:25 pmLambert-St Louis
10h 18m
2 stops
ITH11:43 pmIthaca Tompkins County
Oct 26
ITH6:10 amIthaca Tompkins County
9h 15m
2 stops
STL2:25 pmLambert-St Louis
$495
Find similar
United Airlines
Dec 4
STL9:00 amLambert-St Louis
13h 43m
2 stops
ITH11:43 pmIthaca Tompkins County
Dec 7
ITH6:10 amIthaca Tompkins County
9h 15m
2 stops
STL2:25 pmLambert-St Louis
$512
Find similar

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 octubre 21, 2025.
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

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

sáb. 11/1

4:10 pm-12:21 am

1 stop7h 11m

Ithaca Tompkins County

mar. 11/4

5:40 am-4:43 pm

1 stop12h 03m

$447

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

sáb. 11/1

4:10 pm-12:21 am

1 stop7h 11m

Ithaca Tompkins County

mar. 11/4

5:40 am-4:43 pm

1 stop12h 03m

$452

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

sáb. 11/1

4:10 pm-12:21 am

1 stop7h 11m

Ithaca Tompkins County

mar. 11/4

5:40 am-10:04 pm

2 stops17h 24m

$460

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

jue. 12/4

9:00 am-11:43 pm

2 stops13h 43m

Ithaca Tompkins County

dom. 12/7

6:10 am-2:25 pm

2 stops9h 15m

$512

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

sáb. 11/1

1:10 pm-6:28 pm

1 stop4h 18m

Ithaca Tompkins County

mar. 11/4

7:40 pm-5:39 pm

2 stops22h 59m

$531

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

sáb. 11/1

8:00 am-6:28 pm

2 stops9h 28m

Ithaca Tompkins County

mar. 11/4

7:40 pm-10:40 am

2 stops16h 00m

$536

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

jue. 12/4

8:30 am-11:43 pm

1 stop14h 13m

Ithaca Tompkins County

dom. 12/7

6:10 am-2:25 pm

2 stops9h 15m

$613

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

mar. 11/4

3:14 pm-11:43 pm

2 stops7h 29m

Ithaca Tompkins County

sáb. 11/8

7:40 pm-12:28 pm

2 stops17h 48m

$658

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

mar. 11/4

3:14 pm-11:43 pm

2 stops7h 29m

Ithaca Tompkins County

sáb. 11/8

7:40 pm-10:07 am

1 stop15h 27m

$664

St. LouisIthaca

STL - ITH

STLITH

Lambert-St Louis

sáb. 11/1

10:00 am-6:28 pm

2 stops7h 28m

Ithaca Tompkins County

mar. 11/4

7:40 pm-10:22 pm

3 stops27h 42m

$672

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 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

What is the cheapest day to depart on your flight to Ithaca?

On average, the least expensive day to fly to Ithaca from St. Louis is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $358. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from St. Louis to Ithaca on a Sunday will generally be more expensive and average around $1,206. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ithaca?

According to our data, the cheapest time of day to fly to Ithaca is in the morning. momondo users have found flights departing from St. Louis to Ithaca in the morning for as low as $398. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Ithaca are more costly at noon, with an average ticket price of $598. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
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 4h 18m.

  • 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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