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Cheap flights from Peoria, Illinois to London Heathrow Airport from £263

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
24 Aug — 31 Aug1
1 adult

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 19 August 2025.

Round-trip from

£555

One-way from

£263

Popular in

December

Cheapest in

October

Average price

£612
American Airlines
  • American Airlines
  • 1/10-8/10
  • 2 total stops
  • 27h 06m total
  • Peoria to London
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31/10
  • 31/10
  • 3 total stops
  • 43h 29m total
  • Peoria to London
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Highest demand for flights based on searches. 32% potential increase in price (£271 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease (£42 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Peoria to Heathrow

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 19 August 2025.

Wed 1/1011:24PIA - LHR
1 stop13h 01mAmerican Airlines
Wed 8/1015:10LHR - PIA
1 stop14h 05mAmerican Airlines
Deal found 17/8£555
Fri 3/1018:25PIA - LHR
1 stop10h 05mBritish Airways
Fri 10/1006:15LHR - PIA
2 stops19h 25mBritish Airways
Deal found 19/8£570
Wed 12/1106:45PIA - LHR
1 stop19h 10mUnited Airlines
Wed 19/1109:00LHR - PIA
2 stops33h 39mUnited Airlines
Deal found 19/8£582
Thu 2/1018:25PIA - LHR
1 stop11h 50mBritish Airways
Thu 9/1019:30LHR - PIA
2 stops30h 10mBritish Airways
Deal found 18/8£585
Wed 1/1018:15PIA - LHR
1 stop10h 50mBritish Airways
Wed 8/1019:30LHR - PIA
2 stops30h 10mBritish Airways
Deal found 17/8£590
Fri 3/1015:34PIA - LHR
1 stop14h 56mAmerican Airlines
Fri 10/1009:15LHR - PIA
1 stop12h 53mAmerican Airlines
Deal found 19/8£591
Fri 3/1018:25PIA - LHR
1 stop10h 40mAmerican Airlines
Wed 8/1009:15LHR - PIA
1 stop12h 53mAmerican Airlines
Deal found 16/8£592
Sun 14/918:25PIA - LHR
1 stop11h 50mAmerican Airlines
Sun 21/908:20LHR - PIA
1 stop13h 30mAmerican Airlines
Deal found 17/8£593
Wed 1/1008:10PIA - LHR
2 stops19h 25mUnited Airlines
Wed 8/1012:40LHR - PIA
2 stops27h 33mUnited Airlines
Deal found 17/8£612
Fri 3/1018:25PIA - LHR
1 stop10h 40mBritish Airways
Wed 8/1019:30LHR - PIA
2 stops30h 10mBritish Airways
Deal found 16/8£630

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 19 August 2025.
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

Wed 12/11

10:45-08:15

1 stop15h 30m

London Heathrow

Wed 19/11

11:45-23:28

1 stop17h 43m

£555

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 1/10

11:24-06:25

1 stop13h 01m

London Heathrow

Wed 8/10

15:10-23:15

1 stop14h 05m

£555

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 3/10

18:25-10:30

1 stop10h 05m

London Heathrow

Fri 10/10

06:15-19:40

2 stops19h 25m

£570

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/11

06:45-07:55

1 stop19h 10m

London Heathrow

Wed 19/11

09:00-12:39

2 stops33h 39m

£582

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 2/10

18:25-12:15

1 stop11h 50m

London Heathrow

Thu 9/10

19:30-19:40

2 stops30h 10m

£585

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 1/10

18:15-11:05

1 stop10h 50m

London Heathrow

Wed 8/10

19:30-19:40

2 stops30h 10m

£590

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 3/10

15:34-12:30

1 stop14h 56m

London Heathrow

Fri 10/10

09:15-16:08

1 stop12h 53m

£591

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 3/10

18:25-11:05

1 stop10h 40m

London Heathrow

Wed 8/10

09:15-16:08

1 stop12h 53m

£592

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 14/9

18:25-12:15

1 stop11h 50m

London Heathrow

Sun 21/9

08:20-15:50

1 stop13h 30m

£593

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 2/10

09:54-09:05

1 stop17h 11m

London Heathrow

Thu 9/10

15:00-00:22

1 stop15h 22m

£593

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 13 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.

Cheapflights Insights

Everything you need to know about your flight from Peoria to London Heathrow Airport

How much does it cost for a return flight from Peoria, Illinois to London Heathrow Airport?

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?

    American Airlines, British Airways, and United Airlines can get you from Peoria, Illinois to London Heathrow Airport in just under 10h 05m. Your travel time can differ by up to 9h 05m. 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.

  • What is the cheapest month to book a flight from Peoria, Illinois to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Peoria, Illinois to London Heathrow Airport (average of £112). Flying from Peoria, Illinois to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Hounslow
Gatwick
Slough
Northampton
Deal
Luton
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Winchester
Swindon
Eastbourne
Chichester
Southend-on-Sea

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