Which airports can I use when flying from St. Louis to Ithaca?

Flights from St. Louis to Ithaca usually depart from Lambert-St Louis (STL) and arrive at Ithaca Tompkins County (ITH).

Which airports do connecting flights from St. Louis to Ithaca pass through?

Most connecting flights from St. Louis to Ithaca pass through Washington, D.C. Dulles Intl (IAD), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Can I save money by using flexible dates for flights from St. Louis to Ithaca?

On the St. Louis to Ithaca route, being flexible with your departure day can save you up to 56%. Saturday is the cheapest day at $594 round-trip on average, while Monday is the most expensive at $1,332: a $738 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Do I need a passport to fly from St. Louis to Ithaca?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from St. Louis to Ithaca changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $409 to $1,519. That means the highest observed fare was about 4x higher than the lowest one.

What is the time difference between St. Louis and Ithaca?

Ithaca is 1 hour ahead of St. Louis (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

How much should I expect to pay for a St. Louis to Ithaca flight?

Round-trip flights from St. Louis to Ithaca range from $594 to $1,332, with an average of $1,332 over the past 12 months. Anything below $594 counts as a good deal.

What is the cheapest layover airport when flying from St. Louis to Ithaca?

Flights via Washington, D.C. Dulles Intl (IAD) offer the most affordable fares, with an average round-trip price of $1,332. Based on KAYAK data over the past 3 months.

When flying from St. Louis to Ithaca which airport offers the shortest layover?

Washington, D.C. Dulles Intl (IAD) had the shortest average connection time for St. Louis to Ithaca layovers at 213 minutes over the past 3 months.

$409 CHEAP FLIGHTS from St. Louis to Ithaca (STL - ITH)

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Cheapest round-trip

$409

Typical prices: $594-$1,332

United Airlines

Sat 10/20Wed 10/24

STL - ITH • 2 stops

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Flight Deals

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from St. Louis to Ithaca

Tue, Oct 20 - Sat, Oct 24

1:29 pm - 11:44 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

9h 15m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

6:15 am - 3:43 pmITH Ithaca Tompkins County-STL Lambert-St Louis

10h 28m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$409United Airlines

Tue, Oct 20 - Sat, Oct 24

9:04 am - 6:53 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

8h 49m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

6:15 am - 2:16 pmITH Ithaca Tompkins County-STL Lambert-St Louis

9h 01m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$409United Airlines

Tue, Oct 20 - Sat, Oct 24

8:00 am - 6:53 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

9h 53m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

6:15 am - 3:43 pmITH Ithaca Tompkins County-STL Lambert-St Louis

10h 28m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$409United Airlines

Tue, Sep 1 - Sat, Sep 5

1:00 pm - 7:03 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

5h 03m1 stop Washington, D.C. Dulles Intl

10:25 am - 10:00 pmITH Ithaca Tompkins County-STL Lambert-St Louis

12h 35m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$434United Airlines

Tue, Sep 1 - Sat, Sep 5

8:30 am - 7:03 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

9h 33m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

10:25 am - 10:00 pmITH Ithaca Tompkins County-STL Lambert-St Louis

12h 35m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$439United Airlines

Tue, Oct 20 - Sat, Oct 24

1:09 pm - 6:53 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

4h 44m1 stop Washington, D.C. Dulles Intl

6:15 am - 12:15 pmITH Ithaca Tompkins County-STL Lambert-St Louis

7h 00m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$473United Airlines

Tue, Sep 1 - Sat, Sep 5

1:00 pm - 7:03 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

5h 03m1 stop Washington, D.C. Dulles Intl

6:00 am - 9:39 amITH Ithaca Tompkins County-STL Lambert-St Louis

4h 39m1 stop Washington, D.C. Dulles Intl

$490United Airlines

Tue, Oct 20 - Sat, Oct 24

1:09 pm - 11:44 pmSTL Lambert-St Louis-ITH Ithaca Tompkins County

9h 35m1 stop Washington, D.C. Dulles Intl

6:15 am - 2:16 pmITH Ithaca Tompkins County-STL Lambert-St Louis

9h 01m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$507United Airlines

Booking Insights

Price, demand and travel trends for St. Louis to Ithaca flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Ithaca with more confidence.

Airlines

Layovers

What is the cheapest airline to fly from St. Louis to Ithaca?

United Airlines ($409) offered the cheapest round-trip ticket from St. Louis to Ithaca in the last 5 days.

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Cheapest flight	$409

Flight from St. Louis to Ithaca

When to book flights from St. Louis to Ithaca

Are your dates flexible? Find out the best times to travel from St. Louis to Ithaca based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from St. Louis to Ithaca?
Flights from St. Louis to Ithaca usually depart from Lambert-St Louis (STL) and arrive at Ithaca Tompkins County (ITH).
Which airports do connecting flights from St. Louis to Ithaca pass through?
Most connecting flights from St. Louis to Ithaca pass through Washington, D.C. Dulles Intl (IAD), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from St. Louis to Ithaca?
On the St. Louis to Ithaca route, being flexible with your departure day can save you up to 56%. Saturday is the cheapest day at $594 round-trip on average, while Monday is the most expensive at $1,332: a $738 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
Do I need a passport to fly from St. Louis to Ithaca?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from St. Louis to Ithaca changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $409 to $1,519. That means the highest observed fare was about 4x higher than the lowest one.
What is the time difference between St. Louis and Ithaca?
Ithaca is 1 hour ahead of St. Louis (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.
How much should I expect to pay for a St. Louis to Ithaca flight?
Round-trip flights from St. Louis to Ithaca range from $594 to $1,332, with an average of $1,332 over the past 12 months. Anything below $594 counts as a good deal.

If your dates can be flexible, aim for a Saturday departure instead of Monday. On this route, Saturday flights average $594 - about $738 less than Monday (55% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ithaca Tompkins County Airport.
- Cayuga Blu Hotel
- Homewood Suites by Hilton Ithaca
- Courtyard by Marriott Ithaca Airport/University

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STL - ITH

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

Recent round-trip flight deals from St. Louis to Ithaca

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Price, demand and travel trends for St. Louis to Ithaca flights

What is the cheapest airline to fly from St. Louis to Ithaca?

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When flying from St. Louis to Ithaca which airport offers the shortest layover?

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