$279 Cheap Flights from St. Louis (STL) to Ithaca (ITH)

View $279 flight on Wed, Jun 24, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Ithaca, NY (ITH-Tompkins Regional)

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Cheap Flights from St. Louis to Ithaca (STL-ITH)

Prices were available within the past 7 days and start at $279 for one-way flights and $334 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Aug 24 - Sat, Aug 29
STL
St. Louis
ITH
Ithaca
$334 Roundtrip, found 5 days ago
$334
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Aug 24 from St. Louis to Ithaca, returning Sat, Aug 29, priced at $334 found 5 days ago
Delta
Wed, Apr 22 - Tue, Apr 28
STL
St. Louis
ITH
Ithaca
$339 Roundtrip, found 4 days ago
$339
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Apr 22 from St. Louis to Ithaca, returning Tue, Apr 28, priced at $339 found 4 days ago
Delta
Wed, Jun 24 - Fri, Jul 3
STL
St. Louis
ITH
Ithaca
$364 Roundtrip, found 5 days ago
$364
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Jun 24 from St. Louis to Ithaca, returning Fri, Jul 3, priced at $364 found 5 days ago
Delta
Wed, Apr 1 - Tue, Apr 14
STL
St. Louis
ITH
Ithaca
$374 Roundtrip, found 3 hours ago
$374
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Apr 1 from St. Louis to Ithaca, returning Tue, Apr 14, priced at $374 found 3 hours ago
Delta
Wed, Apr 1 - Wed, Apr 8
STL
St. Louis
ITH
Ithaca
$379 Roundtrip, found 3 hours ago
$379
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Apr 1 from St. Louis to Ithaca, returning Wed, Apr 8, priced at $379 found 3 hours ago
Delta
Wed, Jun 24 - Wed, Jul 1
STL
St. Louis
ITH
Ithaca
$393 Roundtrip, found 5 days ago
$393
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Jun 24 from St. Louis to Ithaca, returning Wed, Jul 1, priced at $393 found 5 days ago
Delta
Mon, Aug 24 - Sat, Aug 29
STL
St. Louis
ITH
Ithaca
$399 Roundtrip, found 5 days ago
$399
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Aug 24 from St. Louis to Ithaca, returning Sat, Aug 29, priced at $399 found 5 days ago
Delta
Mon, Aug 24 - Sat, Aug 29
STL
St. Louis
ITH
Ithaca
$404 Roundtrip, found 5 days ago
$404
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Aug 24 from St. Louis to Ithaca, returning Sat, Aug 29, priced at $404 found 5 days ago
Delta
Wed, Apr 1 - Thu, Apr 9
STL
St. Louis
ITH
Ithaca
$409 Roundtrip, found 3 hours ago
$409
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Apr 1 from St. Louis to Ithaca, returning Thu, Apr 9, priced at $409 found 3 hours ago
United
Wed, Apr 1 - Mon, Apr 6
STL
St. Louis
ITH
Ithaca
$590 Roundtrip, found 3 hours ago
$590
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Apr 1 from St. Louis to Ithaca, returning Mon, Apr 6, priced at $590 found 3 hours ago

Alternative airports near Ithaca

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Tompkins Regional ITH. Cheapest and Closest option available. Average driving time to city center is 13 minutes. Flights from $731
ITH
Tompkins Regional
CheapestClosest
Average driving time to city center13 min
Flights from $731

Frequently asked questions

How much does a flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) cost?
You can find cheap one-way flights from $279 and cheap return flights from $334 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) with Expedia. One-way flights usually range from $254 to $944, and return flights typically cost between $806 and $1499. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
The cheapest month to fly from STL to ITH is August when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
Enter STL to ITH and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
Delta is one of the cheapest airlines offering connecting flights from St. Louis, MO (STL) to Ithaca, NY (ITH), with round-trip tickets starting from around $757 with a layover in Hartsfield-Jackson Atlanta Intl. (ATL). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
The earliest flight from Lambert-St. Louis International Airport (STL) to Tompkins Regional Airport (ITH) typically departs at around 6:00 AM, operated by Delta. This service is seasonal and active in May, June, and August, making it a great option for early risers looking to maximize their time in Ithaca. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
The most popular departure times for flights from St. Louis, MO (STL) to Ithaca, NY (ITH) are in the late morning, from 9am to noon. About 33% of passengers prefer this time window. Many major carriers, including Delta Air Lines and United Airlines, operate flights during this window. This timing is popular because it allows travelers to start their day early and arrive in Ithaca with time to spare.
How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
A flight from STL to ITH with a layover takes around 4 hours 30 minutes, with the route covering approximately 773 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
First class seats are offered on the STL to ITH route with Delta Air Lines.
How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) flight with Expedia?
It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ithaca from Lambert-St. Louis Intl. (STL)?
From Lambert-St. Louis Intl. (STL), you can fly into Tompkins Regional (ITH) to reach Ithaca. Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Detroit Metropolitan Wayne County (DTW) before reaching Ithaca. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) at the last minute?
Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) flight and hotel package?
Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) Ithaca Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional)?
If you booked your St. Louis, MO (STL-Lambert-St. Louis Intl.) to Ithaca, NY (ITH-Tompkins Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Tompkins Regional
Airlines serving
Delta, United
Roundtrip price
$334
Distance
773 mi

Book with confidence

St. Louis to Ithaca Flights

The cheapest times to fly from St. Louis to Ithaca

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Ithaca are during the month of August. You can find some of the cheapest flights from St. Louis to Ithaca with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Ithaca

Sunday is one of the best days to book for cheap flights from St. Louis to Ithaca: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Ithaca

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Ithaca in 2026. You can also book with separate airlines for your outbound and return journeys, from $279 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Ithaca flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Ithaca airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Ithaca Flights

*Flight schedules are subject to change.

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*Available to One Key members.