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Cheap flights from Peoria, Illinois to London Heathrow Airport from £432

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
16 Jul — 23 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 June 2026.

Wed 12/805:45
PIA
-
LHR
1 stop19h 00m
United Airlines
Wed 19/807:25
LHR
-
PIA
2 stops15h 36m
United Airlines
Deal found 12/6£697
Sun 23/815:35
PIA
-
LHR
2 stops19h 05m
Lufthansa
Tue 15/910:50
LHR
-
PIA
2 stops16h 09m
Lufthansa
Deal found 13/6£698
Sun 23/810:41
PIA
-
LHR
2 stops14h 14m
United Airlines
Tue 15/906:50
LHR
-
PIA
2 stops16h 08m
United Airlines
Deal found 15/6£700
Wed 12/818:48
PIA
-
LHR
1 stop10h 27m
British Airways
Wed 19/813:10
LHR
-
PIA
1 stop16h 49m
British Airways
Deal found 11/6£712
Sun 23/818:48
PIA
-
LHR
1 stop11h 27m
British Airways
Tue 15/911:10
LHR
-
PIA
1 stop18h 58m
British Airways
Deal found 16/6£717
Sun 19/714:33
PIA
-
LHR
1 stop15h 22m
United Airlines
Wed 26/811:05
LHR
-
PIA
1 stop11h 56m
United Airlines
Deal found 12/6£718
Fri 17/717:43
PIA
-
LHR
2 stops34h 17m
United Airlines
Tue 25/806:50
LHR
-
PIA
2 stops21h 53m
United Airlines
Deal found 14/6£731
Fri 17/717:43
PIA
-
LHR
1 stop32h 47m
Lufthansa
Tue 25/806:50
LHR
-
PIA
2 stops16h 41m
Lufthansa
Deal found 14/6£734

Find 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 June 2026.

Round-trip from

£690

One-way from

£432
Lufthansa
  • Lufthansa
  • 23/8-15/9
  • 4 total stops
  • 32h 35m total
  • Peoria to London
Search Deals
United Airlines
  • United Airlines
  • 23/8
  • 1 total stop
  • 20h 55m total
  • Peoria to London
Search Deals

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 June 2026.
Use the filters below to find and compare flights from Peoria to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 23/8

10:41-09:00

1 stop16h 19m

London Heathrow

Tue 15/9

06:50-16:58

2 stops16h 08m

£696

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

05:45-06:45

1 stop19h 00m

London Heathrow

Wed 19/8

07:25-17:01

2 stops15h 36m

£697
Fastest return journey

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 3/8

17:43-11:55

1 stop12h 12m

London Heathrow

Wed 12/8

07:45-17:01

2 stops15h 16m

£762
Cheapest one-way

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 18/7

17:43-21:20

2 stops21h 37m

£432
Fastest single journey

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 23/8

08:29-09:00

1 stop18h 31m

£432

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Sorted by cheapest first

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 can get you from Peoria, Illinois to London Heathrow Airport in just under 16h 19m. Your travel time can differ by up to . Peoria, Illinois and London Heathrow Airport are separated by a distance of 4069 mi.

  • 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
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Eastbourne
Watford
Swindon
Ipswich
Poole
Guildford
Romford

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

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