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Cheap flights from Peoria, Illinois to London from £512

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
11 Jan — 18 Jan1
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 12 December 2025.

Sat 13/1210:45PIA - LHR
2 stops17h 40mUnited Airlines
Sat 20/1212:05LHR - PIA
2 stops32h 03mUnited Airlines
Deal found 12/12£772
Sun 21/1213:20PIA - LHR
1 stop10h 35mLufthansa
Wed 10/610:50LHR - PIA
2 stops15h 56mLufthansa
Deal found 11/12£1,050
Sat 20/1217:19PIA - LHR
1 stop30h 36mUnited Airlines
Tue 6/113:45LHR - PIA
2 stops52h 53mUnited Airlines
Deal found 10/12£1,175
Sat 13/1213:15PIA - LHR
1 stop12h 40mLufthansa
Sat 20/1213:35LHR - PIA
1 stop14h 04mLufthansa
Deal found 12/12£1,273
Sun 21/1217:19PIA - LCY
2 stops42h 21mLufthansa
Wed 10/619:10LCY - PIA
2 stops31h 36mLufthansa
Deal found 11/12£1,363
Sat 13/1217:53PIA - LGW
1 stop34h 07mMultiple Airlines
Sat 20/1218:40LGW - PIA
2 stops44h 31mMultiple Airlines
Deal found 12/12£1,417
Sun 21/1217:19PIA - LCY
2 stops42h 21mMultiple Airlines
Wed 10/619:10LCY - PIA
2 stops27h 21mMultiple Airlines
Deal found 12/12£2,470

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 12 December 2025.

Round-trip from

£512

Popular in

December

Cheapest in

February

Average price

£1,755
United Airlines
  • United Airlines
  • 11/2-15/2
  • 3 total stops
  • 30h 15m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 33% potential increase in price (£297 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease (£74 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 2025.
Use the filters below to find and compare flights from Peoria to London that are best for you.

Fly from

Peoria

Fly to

London

Route

Depart

Return

Price

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 11/2

15:00-11:15

1 stop14h 15m

London Heathrow

Sun 15/2

06:50-16:50

2 stops16h 00m

£512

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 24/1

10:45-07:10

2 stops38h 25m

London Heathrow

Sat 31/1

12:05-14:23

2 stops56h 18m

£519

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 19/4

13:25-06:45

1 stop11h 20m

London Heathrow

Sat 25/4

13:45-21:33

2 stops37h 48m

£525

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Sun 7/6

18:34-08:35

2 stops32h 01m

London City

Sun 21/6

16:20-17:37

2 stops31h 17m

£1,329

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Sun 21/12

17:19-17:40

2 stops42h 21m

London City

Wed 10/6

19:10-20:46

2 stops31h 36m

£1,363

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Sun 7/6

18:34-20:00

2 stops19h 26m

London Gatwick

Sun 21/6

11:40-23:04

2 stops17h 24m

£2,389

Flights are sorted by cheapest return flights first.

Deals found on 9/12

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
No data available for this route at this time. Please check back soon.

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 14h 15m. United Airlines provides one of the quickest options available for as low as £512. 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

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Alternative routes for Peoria to London

See prices for flight routes from nearby airports that may be better suited for you.
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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?

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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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