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Cheap flights from Peoria, Illinois to London Heathrow Airport from £383

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Peoria to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 January 2026.

Round-trip from

£470

One-way from

£383

Popular in

June

Cheapest in

February
United Airlines
  • United Airlines
  • 2/3-9/3
  • 3 total stops
  • 52h 40m total
  • Peoria to London
Search Deals
United Airlines
  • United Airlines
  • 11/7
  • 2 total stops
  • 34h 40m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£109 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£26 potential savings vs. average return price).
Search Deals

Find flight deals from Peoria to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Peoria to Heathrow
Explore the most affordable flight options available from Peoria to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 January 2026.

Wed 12/820:00
PIA
-
LHR
1 stop10h 15m
British Airways
Wed 19/811:10
LHR
-
PIA
1 stop13h 59m
British Airways
Deal found 15/1£464
Wed 1/413:17
PIA
-
LHR
1 stop13h 48m
British Airways
Wed 8/415:15
LHR
-
PIA
1 stop14h 17m
British Airways
Deal found 15/1£474
Sun 1/319:00
PIA
-
LHR
1 stop10h 35m
British Airways
Sun 8/310:00
LHR
-
PIA
2 stops42h 25m
British Airways
Deal found 15/1£479
Wed 21/118:44
PIA
-
LHR
1 stop10h 51m
British Airways
Sun 25/117:25
LHR
-
PIA
2 stops34h 56m
British Airways
Deal found 13/1£484
Wed 1/413:20
PIA
-
LHR
1 stop11h 25m
United Airlines
Wed 8/414:05
LHR
-
PIA
2 stops25h 57m
United Airlines
Deal found 15/1£488
Wed 12/814:30
PIA
-
LHR
2 stops14h 10m
United Airlines
Wed 19/814:05
LHR
-
PIA
2 stops32h 26m
United Airlines
Deal found 15/1£491
Thu 15/113:24
PIA
-
LHR
2 stops14h 21m
Lufthansa
Thu 22/111:10
LHR
-
PIA
2 stops16h 29m
Lufthansa
Deal found 14/1£498
Wed 21/110:45
PIA
-
LHR
2 stops16h 35m
United Airlines
Sun 25/106:50
LHR
-
PIA
2 stops15h 53m
United Airlines
Deal found 13/1£506

Cheapflights Fare Finder

 
Customise your flight search to find flights from Peoria to Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 16 January 2026.
Use the filters below to find and compare flights from Peoria to London Heathrow Airport that are best for you.

Fly from

Peoria

Fly to

Heathrow

Route

Depart

Return

Price

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 2/3

14:51-11:15

1 stop14h 24m

London Heathrow

Mon 9/3

12:05-21:21

2 stops38h 16m

£470

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 1/4

13:17-09:05

1 stop13h 48m

London Heathrow

Wed 8/4

15:15-23:32

1 stop14h 17m

£474

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 1/3

19:00-11:35

1 stop10h 35m

London Heathrow

Sun 8/3

10:00-23:25

2 stops42h 25m

£479

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 1/4

13:20-06:45

1 stop11h 25m

London Heathrow

Wed 8/4

14:05-10:02

2 stops25h 57m

£488

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 1/3

17:25-07:55

1 stop32h 30m

London Heathrow

Sun 8/3

06:50-20:21

2 stops19h 31m

£507

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 11/7

17:20-10:00

2 stops34h 40m

£383

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 11/7

20:11-17:45

3 stops39h 34m

£391

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 11/7

17:20-06:45

1 stop31h 25m

£406

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 10/7

19:42-17:05

3 stops39h 23m

£438

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 9/7

14:30-10:40

2 stops14h 10m

£442

Flights are sorted by cheapest return flights first.

Deals found on 14/1

Showing 1-10 of 14 results
1
2

Best time to book a flight from Peoria to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Peoria with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Peoria to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Peoria to London Heathrow?

    Most people fly from Greater Peoria (PIA) if they book a flight from Peoria to London Heathrow. On average, Greater Peoria has 0 outbound flights to London Heathrow per day from 0 airlines. Greater Peoria is conveniently located just 6.0 mi from Peoria’s city center.

  • How long is the flight from Peoria, Illinois to London Heathrow Airport?

    United Airlines and British Airways can get you from Peoria, Illinois to London Heathrow Airport in just under 13h 48m. Your travel time can differ by up to 36m. Peoria, Illinois and London Heathrow Airport are separated by a distance of 4069 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Peoria to Heathrow that include hotel bookings?

    Yes. In addition to deals on Peoria to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Peoria to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Peoria to Heathrow.

  • Can I find deals for business class flights from Peoria to Heathrow?

    Yes. Cheapflights offers flight deals from Peoria to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Northampton
Slough
Gatwick
Hounslow
Wembley
Ilford
Brentford
Hayes
Colchester
Watford
Crawley
Kingston upon Thames
Swindon
Bedford
Chelmsford
Eastbourne
Romford

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Can Cheapflights notify me if prices for flights from Peoria to Heathrow become cheaper?

Yes! Start tracking prices for Peoria to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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