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Cheap flights from Peoria, Illinois to London from £471

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 28 October 2025.

Wed 10/1213:15PIA - LHR
2 stops11h 55mUnited Airlines
Wed 17/1206:35LHR - PIA
2 stops20h 56mUnited Airlines
Deal found 26/10£471
Sun 7/1213:15PIA - LHR
2 stops11h 55mUnited Airlines
Sun 14/1213:25LHR - PIA
2 stops33h 15mUnited Airlines
Deal found 27/10£514
Sun 7/1210:47PIA - LHR
1 stop14h 03mAmerican Airlines
Sun 14/1209:55LHR - PIA
1 stop14h 15mAmerican Airlines
Deal found 27/10£531
Wed 10/1217:15PIA - LCY
2 stops18h 25mLufthansa
Wed 17/1209:50LCY - PIA
2 stops36h 53mLufthansa
Deal found 26/10£632
Tue 16/1206:45PIA - LHR
2 stops17h 35mUnited Airlines
Sun 21/1211:30LHR - PIA
2 stops35h 13mUnited Airlines
Deal found 26/10£747
Tue 16/1216:19PIA - LHR
1 stop13h 56mAmerican Airlines
Sun 21/1214:10LHR - PIA
1 stop15h 18mAmerican Airlines
Deal found 26/10£846
Fri 21/1110:45PIA - LHR
1 stop15h 50mAmerican Airlines
Fri 28/1111:15LHR - PIA
1 stop18h 51mAmerican Airlines
Deal found 27/10£876
Fri 21/1113:20PIA - LHR
2 stops14h 25mLufthansa
Fri 28/1107:30LHR - PIA
2 stops20h 01mLufthansa
Deal found 27/10£923
Wed 29/1013:20PIA - LHR
1 stop13h 35mMultiple Airlines
Thu 6/1106:00LHR - PIA
2 stops16h 40mMultiple Airlines
Deal found 26/10£1,209
Wed 29/1015:30PIA - LHR
1 stop11h 25mLufthansa
Thu 6/1108:45LHR - PIA
2 stops18h 46mLufthansa
Deal found 27/10£1,211

Cheap 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 28 October 2025.

Round-trip from

£471

Popular in

December

Cheapest in

February

Average price

£755
United Airlines
  • United Airlines
  • 10/12-17/12
  • 4 total stops
  • 32h 51m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£32 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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 28 October 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 10/12

13:15-07:10

2 stops11h 55m

London Heathrow

Wed 17/12

06:35-21:31

2 stops20h 56m

£471

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 7/12

13:15-07:10

2 stops11h 55m

London Heathrow

Sun 14/12

13:25-16:40

2 stops33h 15m

£514

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 24/1

15:00-07:10

2 stops34h 10m

London Heathrow

Sat 31/1

11:05-16:43

2 stops35h 38m

£525

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 9/4

14:30-06:45

1 stop10h 15m

London Heathrow

Fri 24/4

10:50-10:26

2 stops29h 36m

£531

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 9/4

18:41-11:15

1 stop10h 34m

London Heathrow

Fri 24/4

11:05-21:28

1 stop16h 23m

£549

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 27/3

14:45-11:20

2 stops15h 35m

London Heathrow

Tue 31/3

06:50-16:31

2 stops15h 41m

£563

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 24/1

07:38-10:25

1 stop20h 47m

London Heathrow

Sat 31/1

11:00-16:32

1 stop11h 32m

£575

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Wed 10/12

17:15-17:40

2 stops18h 25m

London City

Wed 17/12

09:50-16:43

2 stops36h 53m

£632

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Fri 27/3

06:48-07:30

2 stops19h 42m

London Gatwick

Tue 31/3

14:30-15:44

2 stops31h 14m

£892

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Fri 27/3

17:30-16:15

2 stops41h 45m

London City

Tue 31/3

09:15-20:46

2 stops17h 31m

£1,108

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 12 results
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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
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 11h 55m. United Airlines provides one of the quickest options available for as low as £471. 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 Gatwick and Greater Peoria - London City.

  • 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?

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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?

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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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