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Cheap flights from Peoria, Illinois to London Heathrow Airport from £483

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

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 13 November 2025.

Sat 27/1217:19PIA - LHR
1 stop30h 36mMultiple Airlines
Sat 3/115:45LHR - PIA
1 stop33h 51mMultiple Airlines
Deal found 12/11£1,389
Sat 27/1206:30PIA - LHR
2 stops20h 00mUnited Airlines
Sat 3/113:25LHR - PIA
2 stops33h 18mUnited Airlines
Deal found 12/11£1,416
Fri 26/1206:30PIA - LHR
2 stops18h 00mUnited Airlines
Fri 2/106:50LHR - PIA
2 stops20h 49mUnited Airlines
Deal found 11/11£1,453
Fri 26/1218:25PIA - LHR
1 stop11h 35mAmerican Airlines
Fri 2/111:55LHR - PIA
1 stop16h 46mAmerican Airlines
Deal found 11/11£1,578
Sat 27/1210:40PIA - LHR
1 stop17h 20mAmerican Airlines
Sat 3/111:55LHR - PIA
1 stop16h 51mAmerican Airlines
Deal found 12/11£1,775
Fri 26/1221:41PIA - LHR
2 stops27h 04mMultiple Airlines
Fri 2/114:00LHR - PIA
1 stop36h 59mMultiple Airlines
Deal found 11/11£2,031
Sat 27/1217:19PIA - LHR
2 stops16h 31mLufthansa
Sat 3/106:35LHR - PIA
2 stops16h 08mLufthansa
Deal found 11/11£2,066
Fri 12/1213:15PIA - LHR
2 stops13h 45mMultiple Airlines
Fri 19/1211:10LHR - PIA
2 stops16h 29mMultiple Airlines
Deal found 12/11£3,084

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 13 November 2025.

Round-trip from

£483

Popular in

June

Cheapest in

March

Average price

£610
United Airlines
  • United Airlines
  • 4/3-10/3
  • 3 total stops
  • 32h 30m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 13 November 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 4/3

06:35-07:10

2 stops18h 35m

London Heathrow

Tue 10/3

06:35-21:01

2 stops19h 26m

£483

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 4/3

13:25-05:55

1 stop10h 30m

London Heathrow

Tue 10/3

06:00-16:39

2 stops15h 39m

£484

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 4/3

19:03-11:35

1 stop10h 32m

London Heathrow

Tue 10/3

14:10-21:25

1 stop12h 15m

£506

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 27/3

13:24-11:20

2 stops16h 56m

London Heathrow

Tue 31/3

14:05-12:36

2 stops28h 31m

£530

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 27/3

16:52-11:25

2 stops13h 33m

London Heathrow

Tue 31/3

15:00-21:32

1 stop12h 32m

£698

Flights are sorted by cheapest return flights first.

Deals found on 12/11

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 10h 32m. Your travel time can differ by up to 8h 03m. 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
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Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
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Crawley
Brentford
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Chichester
Ipswich

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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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