Is Iberia the cheapest airline to fly with from London to St. Louis?

With an average price of £969 return, Iberia is not the cheapest airline to fly from London to St. Louis with. Instead, for the lowest price, our data suggests flying with Finnair, where a return flight costs £870 on average.

Does Iberia fly direct to St. Louis from London?

No, Iberia does not fly the route directly.

What’s the cheapest day of the week to fly from London to St. Louis with Iberia?

On average, the cheapest day of the week to fly from London to St. Louis with Iberia is Monday, when prices are around £778. The most expensive day is generally Friday, when the average price is around £1,818.

What’s the cheapest month to fly from London to St. Louis with Iberia?

The cheapest month for Iberia flights to St. Louis from London is generally September, where plane tickets cost £835 on average. If possible, try to avoid the most expensive months of August and November, when tickets cost £1,097 and £1,444 respectively.

£708 Cheap Iberia Flights from London to St. Louis

Flights Deals

Cheap Iberia Flight Deals from London to St. Louis

Here are some of the best deals found on KAYAK recently from Iberia for return flights from London to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Recent return Iberia flight deals from London to St. Louis

KAYAK's recommended return flight Iberia deals departing in the coming months from London to St. Louis.

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

12:30 - 20:58LHR-STL

14h 28m1 stop

10:31 - 07:20STL-LHR

14h 49m1 stop

£708Iberia

Find Deal

Tue, 27 May - Tue, 3 Jun

06:15 - 20:23LHR-STL

20h 08m2 stops

14:42 - 07:55STL-LHR

11h 13m1 stop

£714Iberia

Find Deal

Wed, 3 Sep - Wed, 24 Sep

10:05 - 20:58LHR-STL

16h 53m1 stop

19:30 - 12:15STL-LHR

10h 45m1 stop

£714Iberia

Find Deal

Wed, 14 May - Sun, 18 May

11:05 - 21:52LHR-STL

16h 47m1 stop

13:45 - 08:05STL-LHR

12h 20m1 stop

£718Iberia

Find Deal

Mon, 26 May - Fri, 30 May

12:30 - 20:19LHR-STL

13h 49m1 stop

08:43 - 10:30STL-LHR

19h 47m1 stop

£721Iberia

Find Deal

Tue, 10 Jun - Sat, 28 Jun

12:30 - 20:58LHR-STL

14h 28m1 stop

19:30 - 12:15STL-LHR

10h 45m1 stop

£723Iberia

Find Deal

Thu, 15 May - Sun, 18 May

12:15 - 19:11LHR-STL

12h 56m1 stop

13:16 - 08:05STL-LHR

12h 49m1 stop

£736Iberia

Find Deal

Tue, 1 Jul - Fri, 18 Jul

12:30 - 20:19LHR-STL

13h 49m1 stop

08:43 - 07:20STL-LHR

16h 37m1 stop

£748Iberia

Find Deal

Sun, 15 Jun - Sat, 21 Jun

06:15 - 23:49LHR-STL

23h 34m2 stops

14:40 - 08:05STL-LHR

11h 25m1 stop

£770Iberia

Find Deal

Wed, 15 Oct - Sun, 19 Oct

14:25 - 20:23LHR-STL

11h 58m1 stop

14:40 - 08:05STL-LHR

11h 25m1 stop

£771Iberia

Find Deal

Wed, 15 Oct - Sun, 19 Oct

Useful Info

Low season	March
High season	July
Cheapest flight	£708
Average price round-trip	£699

Best time to beat the crowds (22% less expensive on average)

Most popular time to fly (21% more expensive on average)

Flight from London Heathrow Airport to St. Louis

(price for this month)

When to Book Flights with Iberia from London to St. Louis

Average price per month

Flight prices as travel date approaches

Is Iberia the cheapest airline to fly with from London to St. Louis?
With an average price of £969 return, Iberia is not the cheapest airline to fly from London to St. Louis with. Instead, for the lowest price, our data suggests flying with Finnair, where a return flight costs £870 on average.
Does Iberia fly direct to St. Louis from London?
No, Iberia does not fly the route directly.
What’s the cheapest day of the week to fly from London to St. Louis with Iberia?
On average, the cheapest day of the week to fly from London to St. Louis with Iberia is Monday, when prices are around £778. The most expensive day is generally Friday, when the average price is around £1,818.
What’s the cheapest month to fly from London to St. Louis with Iberia?
The cheapest month for Iberia flights to St. Louis from London is generally September, where plane tickets cost £835 on average. If possible, try to avoid the most expensive months of August and November, when tickets cost £1,097 and £1,444 respectively.

7.0

GoodBased on 2,696 verified guest reviews

7.6Crew

6.6Entertainment

7.1Boarding

6.7Comfort

6.3Food

Cons -

Food and Service in Business Class (in 5 reviews)

Show reviews that mention

10.0 Wonderful

Verified traveller, Apr 2025

LHR-PDX

great staff on our long flight, accomodating and helpful

2.0 Poor

Verified traveller, Apr 2025

LHR-JFK

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

2.0 Poor

Verified traveller, Apr 2025

MAD-LHR

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

2.0 Poor

Verified traveller, Apr 2025

LHR-LAX

Everything was good with BA. Iberia was terrible

4.0 Mediocre

Verified traveller, Apr 2025

AUS-LHR

The seats were way too crowded. Just because I do not have the luxury of a suite, does not mean that I want to fly from Austin to London scrunched between two people and the seat in front of me in my face. Ridiculous. I should have flown with Turkish Airlines...

8.0 Very Good

Nathalie, Apr 2025

ORY-MAD

Good but in late 1 hour

2.0 Poor

Verified traveller, Apr 2025

MAD-BRU

Very good service from San Jose to Madrid . Ryanair service from Madrid to Brussels 😕

10.0 Wonderful

Verified traveller, Apr 2025

SJO-MAD

Flight from Costa Rica to Madrid was excellent. Good food and service. The flight from Madrid to Brussels was very poor . No food , no entertainment, no usb … Total package was quite expensive so you should give same service on the second flight

4.0 Mediocre

Verified traveller, Apr 2025

LAX-BCN

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

6.0 Okay

Joe, Apr 2025

ORD-LHR

Paid for “extra room” selected seat. Wasn’t a benefit. Also was in aisle and was bumped almost every time attendants walked down aisle. Should have saved the assigned seat money and let them select.

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£708 Find Cheap Iberia Flights from London to St. Louis

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Cheap Iberia Flight Deals from London to St. Louis

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FAQs for flying to St. Louis with Iberia

Is Iberia the cheapest airline to fly with from London to St. Louis?

Does Iberia fly direct to St. Louis from London?

What’s the cheapest day of the week to fly from London to St. Louis with Iberia?

What’s the cheapest month to fly from London to St. Louis with Iberia?

Iberia Customer Reviews

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Everything you need to know for your flight from London to St. Louis

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Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

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The most popular destinations for flights with Iberia according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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