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Cheap flights from Peoria, Illinois to London Heathrow Airport from £327

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
15 Aug — 22 Aug1
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 July 2026.

Sun 15/1110:43
PIA
-
LHR
1 stop15h 12m
Multiple Airlines
Tue 17/1106:50
LHR
-
PIA
2 stops17h 49m
Multiple Airlines
Deal found 16/7£584
Mon 16/1106:30
PIA
-
LHR
1 stop19h 25m
United Airlines
Wed 18/1106:35
LHR
-
PIA
2 stops22h 13m
United Airlines
Deal found 16/7£599
Sun 15/1108:20
PIA
-
LHR
2 stops16h 50m
United Airlines
Tue 17/1106:35
LHR
-
PIA
2 stops22h 13m
United Airlines
Deal found 16/7£602
Sat 14/1117:30
PIA
-
LHR
1 stop12h 05m
British Airways
Mon 16/1111:25
LHR
-
PIA
2 stops42h 45m
British Airways
Deal found 16/7£615
Sat 14/1114:35
PIA
-
LHR
2 stops12h 35m
United Airlines
Mon 16/1106:50
LHR
-
PIA
2 stops16h 05m
United Airlines
Deal found 16/7£625
Sun 11/1008:32
PIA
-
LHR
1 stop21h 23m
United Airlines
Wed 21/1010:50
LHR
-
PIA
2 stops18h 08m
United Airlines
Deal found 13/7£644
Sun 11/1010:43
PIA
-
LHR
2 stops17h 17m
United Airlines
Fri 23/1006:55
LHR
-
PIA
2 stops18h 06m
United Airlines
Deal found 13/7£646
Tue 10/1114:35
PIA
-
LHR
2 stops12h 35m
United Airlines
Wed 18/1111:10
LHR
-
PIA
2 stops17h 38m
United Airlines
Deal found 16/7£647
Mon 12/1008:32
PIA
-
LHR
2 stops19h 43m
United Airlines
Wed 21/1006:50
LHR
-
PIA
2 stops14h 16m
United Airlines
Deal found 13/7£649
Mon 12/1010:43
PIA
-
LHR
2 stops17h 32m
United Airlines
Fri 23/1006:55
LHR
-
PIA
2 stops22h 03m
United Airlines
Deal found 13/7£650
Fri 13/1119:14
PIA
-
LHR
1 stop10h 46m
Multiple Airlines
Sun 15/1106:50
LHR
-
PIA
2 stops16h 05m
Multiple Airlines
Deal found 16/7£658

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 July 2026.

Round-trip from

£584

One-way from

£327
Brussels Airlines
  • Brussels Airlines
  • 15/11-17/11
  • 3 total stops
  • 33h 01m total
  • Peoria to London
Search Deals
30/8
  • 30/8
  • 3 total stops
  • 23h 53m 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 July 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 11/10

10:43-10:00

2 stops17h 17m

London Heathrow

Fri 23/10

06:55-19:01

2 stops18h 06m

£646

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 26/8

15:35-10:40

2 stops13h 05m

London Heathrow

Wed 2/9

06:50-14:57

2 stops14h 07m

£689

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

08:29-06:45

1 stop16h 16m

London Heathrow

Wed 19/8

06:55-19:03

2 stops18h 08m

£696

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 23/8

15:35-11:55

1 stop14h 20m

London Heathrow

Tue 15/9

06:50-20:59

2 stops20h 09m

£696
Fastest return journey

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 11/11

19:14-12:00

1 stop10h 46m

London Heathrow

Sun 15/11

07:40-13:55

1 stop12h 15m

£702

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 23/8

18:48-12:15

1 stop11h 27m

London Heathrow

Tue 15/9

11:10-00:08

1 stop18h 58m

£717
Cheapest one-way

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 30/8

10:07-16:00

3 stops23h 53m

£327

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 23/8

05:45-06:55

2 stops19h 10m

£431
Fastest single journey

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 30/8

10:41-09:00

1 stop16h 19m

£491

Flights are sorted by cheapest return flights first.

Deals found on 15/7

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 17h 17m. 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
Luton
Gatwick
Wembley
Slough
Ilford
Croydon
Hayes
Brentford
Colchester
Northampton
Watford
Eastbourne
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

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Can Cheapflights find flights from Peoria to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Peoria to Heathrow flexibly with Cheapflights today.

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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