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Cheap flights from Peoria, Illinois to London Heathrow Airport from £511

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LHR
1 2월 — 8 2월1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Peoria to Heathrow

Enter your travel dates to find the best prices.

Best flights from Peoria to Heathrow
Discover carefully curated flight deals from Peoria to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 1월 2026.

수 21/117:18PIA - LHR
1 stop11h 57mUnited Airlines
일 25/106:50LHR - PIA
2 stops20h 49mUnited Airlines
Deal found 30/12£511
금 16/106:30PIA - LHR
1 stop17h 25mUnited Airlines
수 21/106:35LHR - PIA
2 stops16h 08mUnited Airlines
Deal found 1/1£512
일 15/213:25PIA - LHR
1 stop15h 50mUnited Airlines
일 22/206:50LHR - PIA
2 stops20h 36mUnited Airlines
Deal found 1/1£512
목 19/214:51PIA - LHR
1 stop11h 04mUnited Airlines
일 15/312:05LHR - PIA
2 stops38h 16mUnited Airlines
Deal found 31/12£548

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 2 1월 2026.

Round-trip from

£511

Popular in

June

Cheapest in

February
United Airlines
  • United Airlines
  • 21/1-25/1
  • 3 total stops
  • 32h 46m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£107 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

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 2 1월 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

수 21/1

17:18-11:15

1 stop11h 57m

London Heathrow

일 25/1

06:50-21:39

2 stops20h 49m

£511

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

금 16/1

06:30-05:55

1 stop17h 25m

London Heathrow

수 21/1

06:35-16:43

2 stops16h 08m

£512

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

일 15/2

13:25-11:15

1 stop15h 50m

London Heathrow

일 22/2

06:50-21:26

2 stops20h 36m

£512

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

목 19/2

14:51-07:55

1 stop11h 04m

London Heathrow

일 15/3

12:05-21:21

2 stops38h 16m

£548

Flights are sorted by cheapest return flights first.

Deals found on 30/12

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 11h 57m. 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
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Croydon
Luton
Slough
Northampton
Hounslow
Gatwick
Ilford
Wembley
Hayes
Brentford
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Crawley
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Eastbourne
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Can Cheapflights find flights from Peoria to Heathrow with no change fees?

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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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