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$279+ Cheap flights from Ithaca to St. Louis (ITH - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
ITH — STL
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
1 adult, Economy
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Cheap flight deals from Ithaca to St. Louis

Cheapest flights from Ithaca to St. Louis
Explore the most affordable flight options available from Ithaca to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.

This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:00 am
ITH
-
STL
1 stop5h 27m
United Airlines
Wed 5/271:13 pm
STL
-
ITH
2 stops9h 31m
United Airlines
Deal found 5/8$505
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:17 am
ITH
-
STL
2 stops8h 48m
Delta
Wed 7/1510:19 am
STL
-
ITH
2 stops12h 54m
Delta
Deal found 5/11$506
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
ITH
-
STL
2 stops7h 11m
United Airlines
Tue 7/141:13 pm
STL
-
ITH
2 stops9h 31m
United Airlines
Deal found 5/12$540
This United Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:50 pm
ITH
-
STL
2 stops20h 56m
United Airlines
Wed 7/81:13 pm
STL
-
ITH
2 stops9h 31m
United Airlines
Deal found 5/9$543
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1410:30 am
ITH
-
STL
2 stops9h 23m
United Airlines
Sat 5/163:20 pm
STL
-
ITH
2 stops7h 24m
United Airlines
Deal found 5/11$580
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:50 pm
ITH
-
STL
1 stop24h 36m
United Airlines
Tue 7/141:13 pm
STL
-
ITH
2 stops9h 31m
United Airlines
Deal found 5/11$605
This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:00 am
ITH
-
STL
2 stops10h 46m
United Airlines
Sat 6/201:13 pm
STL
-
ITH
2 stops9h 31m
United Airlines
Deal found 5/8$612
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
ITH
-
STL
3 stops31h 11m
United Airlines
Tue 7/141:13 pm
STL
-
ITH
2 stops9h 31m
United Airlines
Deal found 5/11$633
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:16 am
ITH
-
STL
2 stops8h 49m
Delta
Mon 7/131:54 pm
STL
-
ITH
2 stops21h 36m
Delta
Deal found 5/11$647

Find flight deals from Ithaca to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Ithaca (ITH) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$505
(United Airlines)

One-way from

$279
(United Airlines)
Provider with most accurate pricing for Ithaca Tompkins County-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Ithaca Tompkins County-Lambert-St Louis flights.
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From Ithaca Tompkins County to Lambert-St Louis
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One-way flight from Ithaca Tompkins County to Lambert-St Louis
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated May 13, 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
Quickest round-trip

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Sat 5/23

6:00 am-10:27 am

1 stop5h 27m

Lambert-St Louis

Wed 5/27

1:13 pm-11:44 pm

2 stops9h 31m

$505

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Wed 7/8

6:00 am-12:11 pm

2 stops7h 11m

Lambert-St Louis

Tue 7/14

1:13 pm-11:44 pm

2 stops9h 31m

$540

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Mon 6/29

7:50 pm-3:46 pm

2 stops20h 56m

Lambert-St Louis

Wed 7/8

1:13 pm-11:44 pm

2 stops9h 31m

$543

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Fri 7/10

7:50 pm-7:26 pm

1 stop24h 36m

Lambert-St Louis

Tue 7/14

1:13 pm-11:44 pm

2 stops9h 31m

$605

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Fri 7/10

5:16 am-1:05 pm

2 stops8h 49m

Lambert-St Louis

Mon 7/13

1:54 pm-12:30 pm

2 stops21h 36m

$647

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Sat 6/6

6:00 am-12:11 pm

2 stops7h 11m

Lambert-St Louis

Sat 6/13

1:13 pm-11:44 pm

2 stops9h 31m

$688

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Wed 5/27

6:00 am-10:27 am

1 stop5h 27m

Lambert-St Louis

Sun 5/31

7:05 pm-7:02 pm

2 stops22h 57m

$788

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Sun 5/31

6:00 am-12:11 pm

2 stops7h 11m

Lambert-St Louis

Thu 6/4

6:00 am-9:53 am

2 stops26h 53m

$842
Cheapest one-way
Quickest one-way

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Fri 6/5

10:35 am-9:30 pm

2 stops11h 55m

$279

IthacaSt. Louis

ITH - STL

ITHSTL

Ithaca Tompkins County

Sun 6/7

7:50 pm-9:30 pm

2 stops26h 40m

$749

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Ithaca-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ithaca-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ithaca-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ithaca-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ithaca-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ithaca to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Ithaca with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Ithaca to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ithaca to St. Louis?

    A quick flight from Ithaca to St. Louis can take about 5h 27m. United Airlines provides one of the quickest options available for as low as $505. Airlines will cover a distance of 772 mi.

  • Can I find deals for flights from Ithaca to St. Louis that include hotel bookings?

    Yes. In addition to deals on Ithaca to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ithaca to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ithaca to St. Louis.

  • Can I find deals for business class flights from Ithaca to St. Louis?

    Yes. Cheapflights offers flight deals from Ithaca to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

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