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Cheap flights from Peoria, Illinois to London from $329

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Peoria, Illinois to London departing on 7/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Peoria, Illinois to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:43 pm - 6:45 am
PIA
-
LHR
31h 02m
1 stop
United Airlines Logo
6:50 am - 10:43 pm
LHR
-
PIA
21h 53m
2 stops
$856United Airlines
Fri, Jul 17 - Tue, Aug 25
United Airlines Logo
3:35 pm - 11:55 am
PIA
-
LHR
14h 20m
1 stop
United Airlines Logo
6:50 am - 8:59 pm
LHR
-
PIA
20h 09m
2 stops
$863United Airlines
Sun, Aug 23 - Tue, Sep 15
United Airlines Logo
5:43 pm - 10:15 am
PIA
-
LHR
34h 32m
2 stops
United Airlines Logo
6:50 am - 3:00 pm
LHR
-
PIA
14h 10m
2 stops
$864United Airlines
Fri, Jul 17 - Tue, Aug 25
United Airlines Logo
8:28 am - 5:55 am
PIA
-
LHR
15h 27m
2 stops
United Airlines Logo
6:50 am - 2:57 pm
LHR
-
PIA
14h 07m
2 stops
$868United Airlines
Sun, Aug 23 - Tue, Sep 15
United Airlines Logo
10:43 am - 6:55 am
PIA
-
LHR
14h 12m
2 stops
United Airlines Logo
7:25 am - 7:01 pm
LHR
-
PIA
17h 36m
2 stops
$869United Airlines
Sun, Oct 4 - Sat, Oct 10
United Airlines Logo
3:35 pm - 11:55 am
PIA
-
LHR
14h 20m
1 stop
United Airlines Logo
11:05 am - 4:58 pm
LHR
-
PIA
11h 53m
1 stop
$892United Airlines
Sun, Aug 23 - Tue, Sep 15
United Airlines Logo
4:05 pm - 6:45 am
PIA
-
LHR
32h 40m
1 stop
United Airlines Logo
6:50 am - 10:58 pm
LHR
-
PIA
22h 08m
2 stops
$913United Airlines
Sun, Oct 4 - Sat, Oct 10
United Airlines Logo
8:32 am - 9:00 am
PIA
-
LHR
18h 28m
1 stop
United Airlines Logo
7:25 am - 7:01 pm
LHR
-
PIA
17h 36m
2 stops
$914United Airlines
Sun, Oct 4 - Sat, Oct 10
United Airlines Logo
4:05 pm - 6:45 am
PIA
-
LHR
32h 40m
1 stop
United Airlines Logo
6:50 am - 10:58 pm
LHR
-
PIA
22h 08m
2 stops
$915United Airlines
Sun, Oct 4 - Sat, Oct 10
United Airlines Logo
10:43 am - 6:55 am
PIA
-
LHR
14h 12m
2 stops
United Airlines Logo
7:25 am - 7:01 pm
LHR
-
PIA
17h 36m
2 stops
$918United Airlines
Sun, Oct 4 - Sat, Oct 10

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American Airlines flights from Peoria, Illinois to London Heathrow Airport

Our best American Airlines deals on Peoria, Illinois to London Heathrow Airport flight tickets
American Airlines
Oct 4
PIA4:28 pmGreater Peoria
13h 42m
1 stop
LHR12:10 pmLondon Heathrow
Oct 10
LHR9:45 amLondon Heathrow
13h 14m
1 stop
PIA4:59 pmGreater Peoria
$942
American Airlines
Oct 4
PIA12:13 pmGreater Peoria
14h 52m
1 stop
LHR9:05 amLondon Heathrow
Oct 10
LHR1:10 pmLondon Heathrow
17h 00m
1 stop
PIA12:10 amGreater Peoria
$957
American Airlines
Oct 4
PIA5:28 pmGreater Peoria
12h 47m
1 stop
LHR12:15 pmLondon Heathrow
Oct 10
LHR9:45 amLondon Heathrow
13h 14m
1 stop
PIA4:59 pmGreater Peoria
$958

United Airlines flights from Peoria, Illinois to London Heathrow Airport

Our best United Airlines deals on Peoria, Illinois to London Heathrow Airport flight tickets
United Airlines
Jul 17
PIA5:43 pmGreater Peoria
31h 02m
1 stop
LHR6:45 amLondon Heathrow
Aug 25
LHR6:50 amLondon Heathrow
21h 53m
2 stops
PIA10:43 pmGreater Peoria
$856
United Airlines
Aug 23
PIA3:35 pmGreater Peoria
14h 20m
1 stop
LHR11:55 amLondon Heathrow
Sep 15
LHR6:50 amLondon Heathrow
20h 09m
2 stops
PIA8:59 pmGreater Peoria
$863
United Airlines
Jul 17
PIA5:43 pmGreater Peoria
34h 32m
2 stops
LHR10:15 amLondon Heathrow
Aug 25
LHR6:50 amLondon Heathrow
14h 10m
2 stops
PIA3:00 pmGreater Peoria
$864

momondo Fare Finder

 
Customize your flight search to find flights from Peoria, Illinois to London Heathrow Airport 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 July 4, 2026.
Use the filters below to find and compare flights from Peoria, Illinois to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 7/17

5:43 pm-6:45 am

1 stop31h 02m

London Heathrow

Tue 8/25

6:50 am-10:43 pm

2 stops21h 53m

$856

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 8/23

3:35 pm-11:55 am

1 stop14h 20m

London Heathrow

Tue 9/15

6:50 am-8:59 pm

2 stops20h 09m

$863

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 7/17

5:43 pm-10:15 am

2 stops34h 32m

London Heathrow

Tue 8/25

6:50 am-3:00 pm

2 stops14h 10m

$864

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 8/23

8:28 am-5:55 am

2 stops15h 27m

London Heathrow

Tue 9/15

6:50 am-2:57 pm

2 stops14h 07m

$868

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/4

10:43 am-6:55 am

2 stops14h 12m

London Heathrow

Sat 10/10

7:25 am-7:01 pm

2 stops17h 36m

$869
Quickest round-trip

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 8/23

3:35 pm-11:55 am

1 stop14h 20m

London Heathrow

Tue 9/15

11:05 am-4:58 pm

1 stop11h 53m

$892

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/4

4:05 pm-6:45 am

1 stop32h 40m

London Heathrow

Sat 10/10

6:50 am-10:58 pm

2 stops22h 08m

$913

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/4

8:32 am-9:00 am

1 stop18h 28m

London Heathrow

Sat 10/10

7:25 am-7:01 pm

2 stops17h 36m

$914

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/4

4:05 pm-6:45 am

1 stop32h 40m

London Heathrow

Sat 10/10

6:50 am-10:58 pm

2 stops22h 08m

$915

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/4

10:43 am-6:55 am

2 stops14h 12m

London Heathrow

Sat 10/10

7:25 am-7:01 pm

2 stops17h 36m

$918

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Peoria, Illinois to London Heathrow Airport

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 Greater Peoria to London Heathrow?

United Airlines is the most popular carrier operating from Greater Peoria to London Heathrow

When to book flights from Peoria, Illinois to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Peoria, Illinois to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Peoria, Illinois to London Heathrow Airport (PIA to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Peoria, Illinois to London Heathrow Airport

Fastest flight time

10h 46m

Direct flights

None
The fastest flight from Peoria, Illinois to London Heathrow Airport takes 10h 46m
There are no direct flights from Peoria, Illinois to London Heathrow Airport. There are no popular flight routes from Peoria, Illinois to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Peoria, Illinois to London Heathrow Airport

  • How far is Greater Peoria to London Heathrow by plane?

    The distance between Greater Peoria and London Heathrow is about 4063.6 mi. By plane, this route typically takes 10h 46m.

  • When did momondo last update prices for flights from Greater Peoria Airport to London Heathrow Airport?

    Prices for flights from Greater Peoria Airport to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from Greater Peoria Airport to London Heathrow Airport?

  • How old do you have to be to fly from Greater Peoria Airport to London Heathrow 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 Greater Peoria Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow 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 Peoria, Illinois to London Heathrow Airport?

Best airlines flying from Peoria, Illinois to London Heathrow Airport

Compare and see reviews for airlines that fly from Peoria, Illinois to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $624Free CancellationRating
7.1
11,765 reviews
Search American Airlines flights
United AirlinesPriceFrom $739Free CancellationRating
7.4
9,930 reviews
Search United Airlines flights

Traveling to a place near London?

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Harrow
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Watford
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Cobham
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Romford

Why use momondo?

Why should I use momondo to find a flight deal from Peoria to London?

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 Peoria to London for you.

Can I find flights from Peoria to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Peoria which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Peoria to London?

Once you have performed a search for Peoria to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

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