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Cheap flights from St. Louis to Thera from $440

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 Thera departing on 9/1. 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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0 bags

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Find the cheapest flights from St. Louis to Thera

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:55 pm - 1:30 pm
STL
-
JTR
34h 35m
2 stops
Multiple Airlines Logo
9:40 pm - 4:26 pm
JTR
-
STL
26h 46m
2 stops
$1,057Multiple Airlines
Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
9:46 am - 4:15 pm
STL
-
JTR
22h 29m
2 stops
Multiple Airlines Logo
9:55 pm - 8:03 pm
JTR
-
STL
30h 08m
2 stops
$1,155Multiple Airlines
Fri, Sep 18 - Sun, Sep 27
Lufthansa Logo
12:23 pm - 4:55 pm
STL
-
JTR
20h 32m
2 stops
Lufthansa Logo
7:10 pm - 11:45 pm
JTR
-
STL
36h 35m
2 stops
$1,175Lufthansa
Sat, Jul 4 - Wed, Jul 15
Air France Logo
10:20 am - 12:40 pm
STL
-
JTR
18h 20m
2 stops
Air France Logo
2:00 pm - 10:15 pm
JTR
-
STL
40h 15m
2 stops
$1,186Air France
Sat, Jul 4 - Wed, Jul 15
Multiple Airlines Logo
11:18 am - 4:15 pm
STL
-
JTR
20h 57m
2 stops
Multiple Airlines Logo
2:50 pm - 9:09 am
JTR
-
STL
26h 19m
2 stops
$1,190Multiple Airlines
Sat, Jul 4 - Wed, Jul 15
Multiple Airlines Logo
9:46 am - 5:30 pm
STL
-
JTR
23h 44m
2 stops
Multiple Airlines Logo
9:55 pm - 8:03 pm
JTR
-
STL
30h 08m
2 stops
$1,203Multiple Airlines
Fri, Sep 18 - Sun, Sep 27
Air France Logo
5:42 pm - 12:40 pm
STL
-
JTR
34h 58m
2 stops
Air France Logo
1:35 pm - 3:57 pm
JTR
-
STL
58h 22m
2 stops
$1,211Air France
Sat, Aug 1 - Sat, Aug 8
Lufthansa Logo
12:23 pm - 4:55 pm
STL
-
JTR
20h 32m
2 stops
Lufthansa Logo
7:10 pm - 11:45 pm
JTR
-
STL
36h 35m
2 stops
$1,218Lufthansa
Sat, Jul 4 - Wed, Jul 15
Lufthansa Logo
12:23 pm - 4:55 pm
STL
-
JTR
20h 32m
2 stops
Lufthansa Logo
7:10 pm - 11:45 pm
JTR
-
STL
36h 35m
2 stops
$1,230Lufthansa
Sat, Jul 4 - Wed, Jul 15
Multiple Airlines Logo
6:48 pm - 1:30 pm
STL
-
JTR
34h 42m
2 stops
Multiple Airlines Logo
9:40 pm - 11:45 pm
JTR
-
STL
34h 05m
2 stops
$1,249Multiple Airlines
Sat, Aug 1 - Sat, Aug 8

Air France flights from St. Louis to Thera

Our best Air France deals on St. Louis to Thera flight tickets
Air France
Jul 4
STL10:20 amLambert-St Louis
18h 20m
2 stops
JTR12:40 pmThera Santorini
Jul 15
JTR2:00 pmThera Santorini
40h 15m
2 stops
STL10:15 pmLambert-St Louis
$1,186
Air France
Aug 1
STL5:42 pmLambert-St Louis
34h 58m
2 stops
JTR12:40 pmThera Santorini
Aug 8
JTR1:35 pmThera Santorini
58h 22m
2 stops
STL3:57 pmLambert-St Louis
$1,211
Air France
Aug 1
STL5:42 pmLambert-St Louis
34h 58m
2 stops
JTR12:40 pmThera Santorini
Aug 8
JTR1:35 pmThera Santorini
58h 22m
2 stops
STL3:57 pmLambert-St Louis
$1,342

Air Canada flights from St. Louis to Thera

Our best Air Canada deals on St. Louis to Thera flight tickets
Air Canada
Oct 18
STL8:55 amLambert-St Louis
27h 05m
2 stops
JTR8:00 pmThera Santorini
Oct 21
JTR8:25 amThera Santorini
19h 35m
2 stops
STL8:00 pmLambert-St Louis
$1,528
Air Canada
Jul 4
STL2:40 pmLambert-St Louis
21h 30m
2 stops
JTR8:10 pmThera Santorini
Jul 15
JTR9:20 amThera Santorini
31h 21m
3 stops
STL8:41 amLambert-St Louis
$1,775

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Thera 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 April 30, 2026.
Use the filters below to find and compare flights from St. Louis to Thera that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 9/19

6:55 pm-1:30 pm

2 stops34h 35m

Thera Santorini

Sat 9/26

9:40 pm-4:26 pm

2 stops26h 46m

$1,057

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Fri 9/18

9:46 am-4:15 pm

2 stops22h 29m

Thera Santorini

Sun 9/27

9:55 pm-8:03 pm

2 stops30h 08m

$1,155

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

12:23 pm-4:55 pm

2 stops20h 32m

Thera Santorini

Wed 7/15

7:10 pm-11:45 pm

2 stops36h 35m

$1,175

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

10:20 am-12:40 pm

2 stops18h 20m

Thera Santorini

Wed 7/15

2:00 pm-10:15 pm

2 stops40h 15m

$1,186
Quickest round-trip

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

11:18 am-4:15 pm

2 stops20h 57m

Thera Santorini

Wed 7/15

2:50 pm-9:09 am

2 stops26h 19m

$1,190

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Fri 9/18

9:46 am-5:30 pm

2 stops23h 44m

Thera Santorini

Sun 9/27

9:55 pm-8:03 pm

2 stops30h 08m

$1,203

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 8/1

5:42 pm-12:40 pm

2 stops34h 58m

Thera Santorini

Sat 8/8

1:35 pm-3:57 pm

2 stops58h 22m

$1,211

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

12:23 pm-4:55 pm

2 stops20h 32m

Thera Santorini

Wed 7/15

7:10 pm-11:45 pm

2 stops36h 35m

$1,218

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

12:23 pm-4:55 pm

2 stops20h 32m

Thera Santorini

Wed 7/15

7:10 pm-11:45 pm

2 stops36h 35m

$1,230

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 8/1

6:48 pm-1:30 pm

2 stops34h 42m

Thera Santorini

Sat 8/8

9:40 pm-11:45 pm

2 stops34h 05m

$1,249

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Thera from

How to get the cheapest flight ticket from St. Louis to Thera

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 airline that flies from Lambert-St Louis to Thera Santorini?

British Airways is the most popular carrier operating from Lambert-St Louis to Thera Santorini

When to book flights from St. Louis to Thera

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Thera according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Thera (STL to JTR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Thera

Fastest flight time

20h 32m

Direct flights

None
The fastest flight from St. Louis to Thera takes 20h 32m
There are no direct flights from St. Louis to Thera. There are no popular flight routes from St. Louis to Thera.
Search flight deals

Frequently asked questions about flying from St. Louis to Thera

  • How far is Lambert-St Louis to Thera Santorini by plane?

    The distance between Lambert-St Louis and Thera Santorini is about 5823.2 mi. In terms of flight time, this usually takes a little over 20h 32m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Thera Santorini Airport?

    Prices for flights from Lambert-St Louis Airport to Thera Santorini Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Thera Santorini Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Thera Santorini Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Thera Santorini Airport.

  • What documentation or ID do you need to fly to Thera Santorini Airport?

    The necessary travel and health documents for your Thera Santorini Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Thera?

Best airlines flying from St. Louis to Thera

Compare and see reviews for airlines that fly from St. Louis to Thera with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $1,024Free CancellationRating
6.8
7,962 reviews
Search Lufthansa flights

Traveling to a place near Thera?

Book flights to Thera if you plan to visit one of these locations
Oia
Imerovigli
Kamari
Pyrgos Kallistis
Firostefani
Ios
Perissa
Megalochori
Mylopotas
Karterados

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Thera?

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 Thera for you.

Can I find flights from St. Louis to Thera with flexible booking policies on momondo?

All flight searches from St. Louis to Thera on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Thera?

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 St. Louis to Thera.

I’m not ready to book a flight from St. Louis to Thera right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Thera 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.

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