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 48% 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.

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

United Airlines is the most popular carrier operating from Ithaca Tompkins County to Lambert-St Louis

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.

$279 Cheap Flights from Ithaca to St. Louis in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ithaca to St. Louis

Round-trip

One-way

Cheap round-trip flights

7:53 pm - 3:44 pmITH-STL

20h 51m2 stops

6:30 am - 6:38 pmSTL-ITH

11h 08m2 stops

$422United Airlines

Find Deal

Wed, Oct 15 - Sat, Oct 18

6:10 am - 2:27 pmITH-STL

9h 17m2 stops

8:25 am - 11:43 pmSTL-ITH

14h 18m2 stops

$426United Airlines

Find Deal

Wed, Oct 1 - Sat, Oct 25

6:10 am - 10:02 amITH-STL

4h 52m1 stop

6:15 am - 11:43 pmSTL-ITH

16h 28m2 stops

$446United Airlines

Find Deal

Fri, Oct 3 - Tue, Oct 21

6:10 am - 12:28 pmITH-STL

7h 18m2 stops

6:15 am - 11:43 pmSTL-ITH

16h 28m2 stops

$451United Airlines

Find Deal

Tue, Sep 30 - Sat, Oct 25

6:10 am - 2:27 pmITH-STL

9h 17m2 stops

1:05 pm - 11:43 pmSTL-ITH

9h 38m1 stop

$462United Airlines

Find Deal

Wed, Oct 1 - Tue, Oct 21

6:10 am - 2:27 pmITH-STL

9h 17m2 stops

8:00 am - 11:43 pmSTL-ITH

14h 43m2 stops

$467United Airlines

Find Deal

Wed, Oct 1 - Mon, Oct 20

6:10 am - 10:02 amITH-STL

4h 52m1 stop

9:20 am - 6:38 pmSTL-ITH

8h 18m2 stops

$475United Airlines

Find Deal

Thu, Sep 25 - Sat, Oct 18

7:40 pm - 10:39 amITH-STL

15h 59m2 stops

3:14 pm - 11:43 pmSTL-ITH

7h 29m2 stops

$476United Airlines

Find Deal

Thu, Nov 13 - Tue, Nov 18

2:05 pm - 4:48 pmITH-STL

27h 43m1 stop

4:10 pm - 12:21 amSTL-ITH

7h 11m1 stop

$477Delta

Find Deal

Mon, Sep 29 - Tue, Oct 21

2:05 pm - 1:20 pmITH-STL

24h 15m2 stops

4:10 pm - 12:21 amSTL-ITH

7h 11m1 stop

$482Delta

Find Deal

Mon, Sep 29 - Tue, Oct 21

United Airlines flights from Ithaca to St. Louis

Our best United Airlines deals on Ithaca to St. Louis flight tickets

United Airlines

Oct 15

ITH7:53 pmIthaca Tompkins County

20h 51m

2 stops

STL3:44 pmLambert-St Louis

Oct 18

STL6:30 amLambert-St Louis

11h 08m

2 stops

ITH6:38 pmIthaca Tompkins County

$422

Find similar

United Airlines

Oct 1

ITH6:10 amIthaca Tompkins County

9h 17m

2 stops

STL2:27 pmLambert-St Louis

Oct 25

STL8:25 amLambert-St Louis

14h 18m

2 stops

ITH11:43 pmIthaca Tompkins County

$426

Find similar

United Airlines

Oct 3

ITH6:10 amIthaca Tompkins County

4h 52m

1 stop

STL10:02 amLambert-St Louis

Oct 21

STL6:15 amLambert-St Louis

16h 28m

2 stops

ITH11:43 pmIthaca Tompkins County

$446

Find similar

Delta flights from Ithaca to St. Louis

Our best Delta deals on Ithaca to St. Louis flight tickets

Delta

Sep 29

ITH2:05 pmIthaca Tompkins County

27h 43m

1 stop

STL4:48 pmLambert-St Louis

Oct 21

STL4:10 pmLambert-St Louis

7h 11m

1 stop

ITH12:21 amIthaca Tompkins County

$477

Find similar

Delta

Sep 29

ITH2:05 pmIthaca Tompkins County

24h 15m

2 stops

STL1:20 pmLambert-St Louis

Oct 21

STL4:10 pmLambert-St Louis

7h 11m

1 stop

ITH12:21 amIthaca Tompkins County

$482

Find similar

Delta

Nov 13

ITH2:05 pmIthaca Tompkins County

7h 41m

2 stops

STL8:46 pmLambert-St Louis

Nov 18

STL4:30 pmLambert-St Louis

5h 24m

1 stop

ITH10:54 pmIthaca Tompkins County

$488

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Wed 10/15

7:53 pm-3:44 pm

2 stops20h 51m

Lambert-St Louis

Sat 10/18

6:30 am-6:38 pm

2 stops11h 08m

$422

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Wed 10/1

6:10 am-2:27 pm

2 stops9h 17m

Lambert-St Louis

Sat 10/25

8:25 am-11:43 pm

2 stops14h 18m

$426

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Fri 10/3

6:10 am-10:02 am

1 stop4h 52m

Lambert-St Louis

Tue 10/21

6:15 am-11:43 pm

2 stops16h 28m

$446

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Tue 9/30

6:10 am-12:28 pm

2 stops7h 18m

Lambert-St Louis

Sat 10/25

6:15 am-11:43 pm

2 stops16h 28m

$451

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Wed 10/1

6:10 am-2:27 pm

2 stops9h 17m

Lambert-St Louis

Tue 10/21

1:05 pm-11:43 pm

1 stop9h 38m

$462

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Wed 10/1

6:10 am-2:27 pm

2 stops9h 17m

Lambert-St Louis

Mon 10/20

8:00 am-11:43 pm

2 stops14h 43m

$467

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Thu 9/25

6:10 am-10:02 am

1 stop4h 52m

Lambert-St Louis

Sat 10/18

9:20 am-6:38 pm

2 stops8h 18m

$475

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Thu 11/13

7:40 pm-10:39 am

2 stops15h 59m

Lambert-St Louis

Tue 11/18

3:14 pm-11:43 pm

2 stops7h 29m

$476

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Mon 9/29

2:05 pm-4:48 pm

1 stop27h 43m

Lambert-St Louis

Tue 10/21

4:10 pm-12:21 am

1 stop7h 11m

$477

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Mon 9/29

2:05 pm-1:20 pm

2 stops24h 15m

Lambert-St Louis

Tue 10/21

4:10 pm-12:21 am

1 stop7h 11m

$482

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $358. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $898. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Ithaca in the morning is the least expensive time of day to depart. momondo users have found prices as low as $391 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $476 per ticket.

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

Direct flights	None

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. 4h 52m 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.

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

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.