Cheap flights from Billund to St. Louis from $509

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Billund to St. Louis departing on 12/4. 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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Cheap round-trip flights

British Airways Logo
1:00 pm - 1:29 pmBLL-STL
31h 29m2 stops
British Airways Logo
7:36 pm - 12:30 pmSTL-BLL
33h 54m2 stops
$509British Airways
Find Deal
Thu, Dec 4 - Mon, Dec 8
British Airways Logo
8:40 pm - 11:59 pmBLL-STL
34h 19m2 stops
British Airways Logo
1:59 pm - 12:20 pmSTL-BLL
15h 21m2 stops
$535British Airways
Find Deal
Thu, Dec 4 - Mon, Dec 8
Lufthansa Logo
2:00 pm - 1:55 pmBLL-STL
30h 55m1 stop
Lufthansa Logo
1:00 pm - 9:40 amSTL-BLL
13h 40m2 stops
$552Lufthansa
Find Deal
Thu, Dec 4 - Mon, Dec 8
Lufthansa Logo
10:45 am - 11:57 pmBLL-STL
20h 12m2 stops
Lufthansa Logo
5:28 pm - 12:25 pmSTL-BLL
35h 57m2 stops
$659Lufthansa
Find Deal
Fri, Oct 10 - Mon, Oct 20
Delta Logo
11:55 am - 11:41 pmBLL-STL
18h 46m2 stops
Delta Logo
6:14 pm - 5:40 pmSTL-BLL
16h 26m2 stops
$931Delta
Find Deal
Fri, Oct 10 - Mon, Oct 20
Lufthansa Logo
1:05 pm - 3:44 pmBLL-STL
33h 39m2 stops
Lufthansa Logo
5:28 pm - 10:05 amSTL-BLL
33h 37m2 stops
$1,067Lufthansa
Find Deal
Sun, Oct 12 - Sat, Oct 18
Lufthansa Logo
1:05 pm - 3:44 pmBLL-STL
33h 39m2 stops
Lufthansa Logo
5:28 pm - 10:05 amSTL-BLL
33h 37m2 stops
$1,069Lufthansa
Find Deal
Sun, Oct 12 - Sat, Oct 18
Delta Logo
11:55 am - 11:41 pmBLL-STL
18h 46m2 stops
Delta Logo
3:59 pm - 5:40 pmSTL-BLL
18h 41m2 stops
$1,204Delta
Find Deal
Fri, Oct 10 - Sun, Oct 19
Multiple Airlines Logo
5:00 pm - 9:41 amBLL-STL
23h 41m3 stops
Multiple Airlines Logo
2:15 pm - 4:20 pmSTL-BLL
19h 05m2 stops
$5,829Multiple Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 20
Multiple Airlines Logo
5:00 pm - 9:41 amBLL-STL
23h 41m3 stops
Multiple Airlines Logo
4:34 pm - 4:20 pmSTL-BLL
16h 46m2 stops
$5,847Multiple Airlines
Find Deal
Fri, Oct 10 - Mon, Oct 20

Delta flights from Billund to St. Louis

Our best Delta deals on Billund to St. Louis flight tickets
Delta
Sep 18
BLL6:00 amBillund
17h 05m
2 stops
STL4:05 pmLambert-St Louis
Sep 29
STL5:11 pmLambert-St Louis
16h 14m
2 stops
BLL4:25 pmBillund
Delta
Oct 10
BLL11:55 amBillund
18h 46m
2 stops
STL11:41 pmLambert-St Louis
Oct 20
STL6:14 pmLambert-St Louis
16h 26m
2 stops
BLL5:40 pmBillund
Delta
Oct 10
BLL11:55 amBillund
18h 46m
2 stops
STL11:41 pmLambert-St Louis
Oct 19
STL3:59 pmLambert-St Louis
18h 41m
2 stops
BLL5:40 pmBillund

Lufthansa flights from Billund to St. Louis

Our best Lufthansa deals on Billund to St. Louis flight tickets
Lufthansa
Dec 4
BLL2:00 pmBillund
30h 55m
1 stop
STL1:55 pmLambert-St Louis
Dec 8
STL1:00 pmLambert-St Louis
13h 40m
2 stops
BLL9:40 amBillund
Lufthansa
Oct 10
BLL10:45 amBillund
20h 12m
2 stops
STL11:57 pmLambert-St Louis
Oct 20
STL5:28 pmLambert-St Louis
35h 57m
2 stops
BLL12:25 pmBillund
Lufthansa
Sep 18
BLL2:40 pmBillund
29h 50m
1 stop
STL1:30 pmLambert-St Louis
Sep 29
STL12:25 pmLambert-St Louis
17h 00m
2 stops
BLL12:25 pmBillund

momondo Fare Finder

 
Customize your flight search to find flights from Billund 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Billund to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Thu 12/4

1:00 pm-1:29 pm

2 stops31h 29m

Lambert-St Louis

Mon 12/8

7:36 pm-12:30 pm

2 stops33h 54m

$509

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Thu 12/4

8:40 pm-11:59 pm

2 stops34h 19m

Lambert-St Louis

Mon 12/8

1:59 pm-12:20 pm

2 stops15h 21m

$535

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Thu 12/4

2:00 pm-1:55 pm

1 stop30h 55m

Lambert-St Louis

Mon 12/8

1:00 pm-9:40 am

2 stops13h 40m

$552

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Fri 10/10

10:45 am-11:57 pm

2 stops20h 12m

Lambert-St Louis

Mon 10/20

5:28 pm-12:25 pm

2 stops35h 57m

$659

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Fri 10/10

11:55 am-11:41 pm

2 stops18h 46m

Lambert-St Louis

Mon 10/20

6:14 pm-5:40 pm

2 stops16h 26m

$931

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Sun 10/12

1:05 pm-3:44 pm

2 stops33h 39m

Lambert-St Louis

Sat 10/18

5:28 pm-10:05 am

2 stops33h 37m

$1,067

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Sun 10/12

1:05 pm-3:44 pm

2 stops33h 39m

Lambert-St Louis

Sat 10/18

5:28 pm-10:05 am

2 stops33h 37m

$1,069

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Fri 10/10

11:55 am-11:41 pm

2 stops18h 46m

Lambert-St Louis

Sun 10/19

3:59 pm-5:40 pm

2 stops18h 41m

$1,204

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Fri 10/10

5:00 pm-9:41 am

3 stops23h 41m

Lambert-St Louis

Mon 10/20

2:15 pm-4:20 pm

2 stops19h 05m

$5,829

BillundSt. Louis

BLL - STL

BLLSTL

Billund

Fri 10/10

5:00 pm-9:41 am

3 stops23h 41m

Lambert-St Louis

Mon 10/20

4:34 pm-4:20 pm

2 stops16h 46m

$5,847

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

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

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 month to fly to St. Louis?

In general, March is the cheapest month to fly from Billund to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $398. The month of February is another great option to travel to St. Louis, with average flight prices from Billund averaging around $456.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $844. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,155. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Billund in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $852 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $1,108 per ticket.

When to book flights from Billund to St. Louis

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

Cheap Billund to St. Louis (BLL to STL) flight deals and tips

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

Direct flights

None
There are no direct flights from Billund to St. Louis. There are no popular flight routes from Billund to St. Louis.
  • How far is Billund to Lambert-St Louis by plane?

    Lambert-St Louis is 4391.1 mi away from Billund. A reasonable flight in good conditions will take 14h 30m.

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

    Prices for flights from Billund Airport to Lambert-St Louis Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Billund Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

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 Billund to St. Louis for you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Billund.

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

If you are not ready to book a flight from Billund to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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1 adult
Fri 10/17
Fri 10/24

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