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Cheap flights from Peoria, Illinois to London from £242

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
3 Jun — 10 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Peoria to London

Enter your travel dates to find the best prices.

Cheapest flights from Peoria to London
Explore the most affordable flight options available from Peoria to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 May 2026.

Sun 23/818:45
PIA
-
LHR
1 stop11h 30m
British Airways
Tue 15/906:15
LHR
-
PIA
2 stops22h 48m
British Airways
Deal found 30/4£650
Sun 23/818:45
PIA
-
LHR
1 stop10h 30m
Multiple Airlines
Fri 28/806:15
LHR
-
PIA
2 stops23h 51m
Multiple Airlines
Deal found 29/4£655
Wed 12/812:20
PIA
-
LHR
1 stop16h 35m
Multiple Airlines
Wed 19/812:55
LHR
-
PIA
1 stop16h 24m
Multiple Airlines
Deal found 29/4£660
Sat 22/818:45
PIA
-
LHR
1 stop31h 20m
Multiple Airlines
Fri 28/806:15
LHR
-
PIA
2 stops23h 51m
Multiple Airlines
Deal found 1/5£670
Fri 2/1018:33
PIA
-
LHR
1 stop10h 17m
American Airlines
Fri 16/1013:10
LHR
-
PIA
1 stop15h 56m
American Airlines
Deal found 30/4£697
Wed 12/818:45
PIA
-
LHR
1 stop11h 30m
British Airways
Wed 19/820:00
LHR
-
PIA
2 stops28h 15m
British Airways
Deal found 1/5£702
Sun 23/817:31
PIA
-
LHR
2 stops16h 09m
Lufthansa
Tue 15/913:30
LHR
-
PIA
2 stops15h 22m
Lufthansa
Deal found 1/5£742
Mon 15/619:44
PIA
-
LGW
1 stop32h 16m
Multiple Airlines
Tue 23/614:00
LGW
-
PIA
1 stop26h 00m
Multiple Airlines
Deal found 29/4£755
Mon 15/619:44
PIA
-
LGW
1 stop32h 16m
Multiple Airlines
Sun 21/614:00
LGW
-
PIA
1 stop34h 54m
Multiple Airlines
Deal found 29/4£944
Tue 21/718:58
PIA
-
LCY
2 stops32h 12m
British Airways
Tue 11/808:10
LCY
-
PIA
2 stops40h 05m
British Airways
Deal found 1/5£967
Mon 15/619:44
PIA
-
LGW
1 stop32h 16m
Multiple Airlines
Sat 20/614:00
LGW
-
PIA
2 stops35h 56m
Multiple Airlines
Deal found 29/4£978
Sun 23/818:45
PIA
-
LCY
2 stops36h 35m
British Airways
Tue 15/919:15
LCY
-
PIA
2 stops33h 48m
British Airways
Deal found 3/5£988

Find flight deals from Peoria to London

Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to London (LON). 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 4 May 2026.

Round-trip from

£650

One-way from

£242

Popular in

December

Cheapest in

September

Average price

£856
British Airways
  • British Airways
  • 23/8-15/9
  • 3 total stops
  • 34h 18m total
  • Peoria to London
Search Deals
British Airways
  • British Airways
  • 23/8
  • 1 total stop
  • 10h 30m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£206 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£65 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Peoria to London 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 4 May 2026.
Use the filters below to find and compare flights from Peoria to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

12:20-10:55

1 stop16h 35m

London Heathrow

Wed 19/8

12:55-23:19

1 stop16h 24m

£660

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

08:25-06:30

2 stops16h 05m

London Heathrow

Wed 19/8

17:40-16:56

2 stops29h 16m

£756

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Mon 15/6

19:44-10:45

2 stops33h 01m

London Gatwick

Tue 23/6

14:00-10:00

1 stop26h 00m

£920

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Mon 15/6

19:44-10:00

1 stop32h 16m

London Gatwick

Sun 21/6

14:00-18:54

1 stop34h 54m

£944

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Tue 21/7

18:58-09:10

2 stops32h 12m

London City

Tue 11/8

08:10-18:15

2 stops40h 05m

£967

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 12/6

05:30-06:30

2 stops19h 00m

London Heathrow

Fri 19/6

07:30-00:15

2 stops22h 45m

£1,023

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 30/5

08:20-06:45

1 stop16h 25m

London Heathrow

Sat 6/6

06:55-16:58

2 stops16h 03m

£1,055

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 3/7

17:43-06:30

2 stops30h 47m

London Heathrow

Sat 11/7

06:50-16:58

2 stops16h 08m

£1,062
Fastest return journey

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Tue 7/7

14:33-09:00

1 stop12h 27m

London Heathrow

Sat 18/7

11:05-19:41

1 stop14h 36m

£1,091

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 14/6

08:20-06:45

1 stop16h 25m

London Heathrow

Tue 23/6

08:00-22:45

1 stop20h 45m

£1,136

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Peoria to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Related info for your journey

Find useful and relevant information for your journey from Peoria to London. 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?

    For a flight from Peoria to London, you will be flying from Greater Peoria. Greater Peoria (PIA) is just 6.0 mi from the center of the city. Greater Peoria is the only Peoria airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Greater Peoria on a regular basis.

  • How long is the flight from Peoria, Illinois to London?

    A quick flight from Peoria, Illinois to London can take about 16h 05m. United Airlines provides one of the quickest options available for as low as £756. Airlines will cover a distance of 4069 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Peoria, Illinois to London?

    The most popular flight routes from Peoria, Illinois to London are Greater Peoria - London Heathrow, Greater Peoria - London City and Greater Peoria - London Gatwick.

  • Can I find deals for flights from Peoria to London that include hotel bookings?

    Yes. In addition to deals on Peoria to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Peoria to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Peoria to London.

  • Can I find deals for business class flights from Peoria to London?

    Yes. Cheapflights offers flight deals from Peoria to London 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?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Hounslow
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford
Chelmsford

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How does Cheapflights help users find flights from Peoria to London?

When you search for this flight from Peoria to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Peoria to London?

Cheapflights helps you find that perfect flight to London from Peoria by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to London from Peoria shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Peoria to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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