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Cheap flights from St. Louis to Thera from $442

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 9/5. 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.
British Airways Logo
8:03 pm - 4:15 pm
STL
-
JTR
60h 12m
2 stops
British Airways Logo
2:45 pm - 11:46 pm
JTR
-
STL
41h 01m
2 stops
$1,047British Airways
Mon, Apr 27 - Mon, May 4
British Airways Logo
8:06 pm - 4:25 pm
STL
-
JTR
36h 19m
2 stops
British Airways Logo
5:10 pm - 11:56 pm
JTR
-
STL
38h 46m
2 stops
$1,051British Airways
Sat, Jul 4 - Wed, Jul 15
British Airways Logo
9:45 am - 4:15 pm
STL
-
JTR
22h 30m
2 stops
British Airways Logo
2:50 pm - 6:15 pm
JTR
-
STL
35h 25m
2 stops
$1,057British Airways
Sat, Sep 5 - Tue, Sep 15
British Airways Logo
8:06 pm - 4:25 pm
STL
-
JTR
36h 19m
2 stops
British Airways Logo
5:10 pm - 11:32 pm
JTR
-
STL
38h 22m
2 stops
$1,101British Airways
Sat, Jul 4 - Wed, Jul 15
British Airways Logo
9:45 am - 1:55 pm
STL
-
JTR
44h 10m
2 stops
British Airways Logo
2:50 pm - 7:30 pm
JTR
-
STL
36h 40m
1 stop
$1,102British Airways
Sat, Sep 5 - Tue, Sep 15
British Airways Logo
5:23 pm - 1:55 pm
STL
-
JTR
36h 32m
2 stops
British Airways Logo
6:30 pm - 7:14 pm
JTR
-
STL
32h 44m
2 stops
$1,113British Airways
Sat, Aug 1 - Sat, Aug 8
British Airways Logo
5:23 pm - 4:25 pm
STL
-
JTR
39h 02m
2 stops
British Airways Logo
5:10 pm - 8:29 pm
JTR
-
STL
35h 19m
2 stops
$1,147British Airways
Sat, Jul 4 - Wed, Jul 15
British Airways Logo
8:03 pm - 4:15 pm
STL
-
JTR
60h 12m
2 stops
British Airways Logo
2:45 pm - 4:41 pm
JTR
-
STL
57h 56m
2 stops
$1,201British Airways
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
7:05 am - 4:55 pm
STL
-
JTR
25h 50m
2 stops
Multiple Airlines Logo
5:40 pm - 1:25 pm
JTR
-
STL
27h 45m
1 stop
$1,264Multiple Airlines
Wed, May 20 - Tue, May 26
Multiple Airlines Logo
7:05 am - 4:55 pm
STL
-
JTR
25h 50m
2 stops
Multiple Airlines Logo
5:40 pm - 1:25 pm
JTR
-
STL
27h 45m
1 stop
$1,265Multiple Airlines
Wed, May 20 - Tue, May 26

Lufthansa flights from St. Louis to Thera

Our best Lufthansa deals on St. Louis to Thera flight tickets
Lufthansa
Apr 25
STL12:15 pmLambert-St Louis
20h 40m
2 stops
JTR4:55 pmThera Santorini
May 2
JTR5:35 pmThera Santorini
27h 50m
1 stop
STL1:25 pmLambert-St Louis
$1,328
Lufthansa
Aug 1
STL1:13 pmLambert-St Louis
19h 42m
2 stops
JTR4:55 pmThera Santorini
Aug 8
JTR5:35 pmThera Santorini
27h 50m
1 stop
STL1:25 pmLambert-St Louis
$1,607
Lufthansa
Aug 1
STL1:13 pmLambert-St Louis
19h 37m
2 stops
JTR4:50 pmThera Santorini
Aug 8
JTR5:35 pmThera Santorini
27h 50m
1 stop
STL1:25 pmLambert-St Louis
$1,619

British Airways flights from St. Louis to Thera

Our best British Airways deals on St. Louis to Thera flight tickets
British Airways
Apr 27
STL8:03 pmLambert-St Louis
60h 12m
2 stops
JTR4:15 pmThera Santorini
May 4
JTR2:45 pmThera Santorini
41h 01m
2 stops
STL11:46 pmLambert-St Louis
$1,047
British Airways
Sep 5
STL9:45 amLambert-St Louis
22h 30m
2 stops
JTR4:15 pmThera Santorini
Sep 15
JTR2:50 pmThera Santorini
35h 25m
2 stops
STL6:15 pmLambert-St Louis
$1,057
British Airways
Jul 4
STL8:06 pmLambert-St Louis
36h 19m
2 stops
JTR4:25 pmThera Santorini
Jul 15
JTR5:10 pmThera Santorini
38h 22m
2 stops
STL11:32 pmLambert-St Louis
$1,101

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 March 15, 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

Mon 4/27

8:03 pm-4:15 pm

2 stops60h 12m

Thera Santorini

Mon 5/4

2:45 pm-11:46 pm

2 stops41h 01m

$1,047

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

8:06 pm-4:25 pm

2 stops36h 19m

Thera Santorini

Wed 7/15

5:10 pm-11:56 pm

2 stops38h 46m

$1,051

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 9/5

9:45 am-4:15 pm

2 stops22h 30m

Thera Santorini

Tue 9/15

2:50 pm-6:15 pm

2 stops35h 25m

$1,057

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

8:06 pm-4:25 pm

2 stops36h 19m

Thera Santorini

Wed 7/15

5:10 pm-11:32 pm

2 stops38h 22m

$1,101

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 9/5

9:45 am-1:55 pm

2 stops44h 10m

Thera Santorini

Tue 9/15

2:50 pm-7:30 pm

1 stop36h 40m

$1,102

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 8/1

5:23 pm-1:55 pm

2 stops36h 32m

Thera Santorini

Sat 8/8

6:30 pm-7:14 pm

2 stops32h 44m

$1,113

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Sat 7/4

5:23 pm-4:25 pm

2 stops39h 02m

Thera Santorini

Wed 7/15

5:10 pm-8:29 pm

2 stops35h 19m

$1,147

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Mon 4/27

8:03 pm-4:15 pm

2 stops60h 12m

Thera Santorini

Mon 5/4

2:45 pm-4:41 pm

2 stops57h 56m

$1,201
Quickest round-trip

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Wed 5/20

7:05 am-4:55 pm

2 stops25h 50m

Thera Santorini

Tue 5/26

5:40 pm-1:25 pm

1 stop27h 45m

$1,264

St. LouisThera

STL - JTR

STLJTR

Lambert-St Louis

Wed 5/20

7:05 am-4:55 pm

2 stops25h 50m

Thera Santorini

Tue 5/26

5:40 pm-1:25 pm

1 stop27h 45m

$1,265

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, American Airlines, and Iberia are the most popular carriers 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

22h 30m

Direct flights

None
The fastest flight from St. Louis to Thera takes 22h 30m
There are no direct flights from St. Louis to Thera. There are no popular flight routes from St. Louis to Thera.
Search flight deals

  • 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 22h 30m.

  • 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
7,849 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
Ios
Firostefani
Perissa
Megalochori
Mylopotas
Karterados

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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.

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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.

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