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Cheap flights from Peoria, Illinois to London from £317

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
11 Apr — 18 Apr1
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 March 2026.

Wed 22/414:50
PIA
-
LHR
1 stop15h 05m
United Airlines
Wed 29/406:50
LHR
-
PIA
2 stops15h 54m
United Airlines
Deal found 7/3£539
Wed 12/813:21
PIA
-
LHR
1 stop13h 09m
United Airlines
Wed 19/807:30
LHR
-
PIA
2 stops21h 22m
United Airlines
Deal found 7/3£547
Mon 23/313:17
PIA
-
LHR
1 stop16h 08m
British Airways
Wed 1/414:45
LHR
-
PIA
1 stop14h 40m
British Airways
Deal found 9/3£554
Wed 22/413:22
PIA
-
LHR
1 stop16h 53m
British Airways
Wed 29/415:15
LHR
-
PIA
1 stop14h 18m
British Airways
Deal found 7/3£556
Wed 8/419:43
PIA
-
LHR
2 stops14h 57m
Lufthansa
Wed 15/406:30
LHR
-
PIA
2 stops16h 14m
Lufthansa
Deal found 11/3£566
Mon 31/818:30
PIA
-
LHR
1 stop31h 35m
Multiple Airlines
Mon 21/919:25
LHR
-
PIA
2 stops28h 15m
Multiple Airlines
Deal found 8/3£569
Mon 31/820:30
PIA
-
LHR
2 stops37h 10m
Lufthansa
Mon 21/919:30
LHR
-
PIA
2 stops33h 22m
Lufthansa
Deal found 8/3£573
Wed 22/413:20
PIA
-
LCY
2 stops22h 35m
Lufthansa
Wed 29/409:15
LCY
-
PIA
2 stops19h 42m
Lufthansa
Deal found 7/3£580
Wed 8/419:43
PIA
-
LCY
2 stops16h 12m
Lufthansa
Wed 15/409:15
LCY
-
PIA
2 stops19h 42m
Lufthansa
Deal found 11/3£582
Sat 16/510:58
PIA
-
LGW
1 stop17h 02m
Multiple Airlines
Tue 19/513:05
LGW
-
PIA
2 stops27h 04m
Multiple Airlines
Deal found 10/3£779
Wed 13/513:28
PIA
-
LGW
2 stops34h 52m
Multiple Airlines
Fri 15/514:00
LGW
-
PIA
1 stop26h 08m
Multiple Airlines
Deal found 10/3£790
Sat 16/510:58
PIA
-
LGW
1 stop17h 02m
Multiple Airlines
Sun 17/514:00
LGW
-
PIA
2 stops28h 43m
Multiple Airlines
Deal found 10/3£812

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 March 2026.

Round-trip from

£539

One-way from

£317

Popular in

December

Cheapest in

September

Average price

£587
United Airlines
  • United Airlines
  • 22/4-29/4
  • 3 total stops
  • 30h 59m total
  • Peoria to London
Search Deals
11/7
  • 11/7
  • 2 total stops
  • 32h 29m total
  • Peoria to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£214 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£66 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 12 March 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 22/4

14:50-11:55

1 stop15h 05m

London Heathrow

Wed 29/4

06:50-16:44

2 stops15h 54m

£539

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 2/9

05:45-06:30

2 stops18h 45m

London Heathrow

Fri 11/9

06:50-19:25

2 stops18h 35m

£542

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Wed 12/8

13:21-08:30

1 stop13h 09m

London Heathrow

Wed 19/8

07:30-22:52

2 stops21h 22m

£547

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 9/4

06:30-08:30

1 stop20h 00m

London Heathrow

Wed 15/4

07:25-16:44

2 stops15h 19m

£577

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Wed 22/4

13:20-17:55

2 stops22h 35m

London City

Wed 29/4

09:15-22:57

2 stops19h 42m

£580

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 23/4

13:22-06:50

1 stop11h 28m

London Heathrow

Thu 30/4

06:15-23:33

2 stops23h 18m

£591
Fastest return journey

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 10/5

06:30-06:45

1 stop18h 15m

London Heathrow

Tue 19/5

11:05-16:50

1 stop11h 45m

£598

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Sat 16/5

10:58-10:00

1 stop17h 02m

London Gatwick

Tue 19/5

13:05-10:09

2 stops27h 04m

£779

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Wed 13/5

13:28-06:20

2 stops34h 52m

London Gatwick

Fri 15/5

14:00-10:08

1 stop26h 08m

£790

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Sun 10/5

12:18-10:00

2 stops39h 42m

London Gatwick

Fri 15/5

14:00-10:08

1 stop26h 08m

£814

Flights are sorted by cheapest return flights first.

Deals found on 10/3

Showing 1-10 of 29 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 15h 05m. United Airlines provides one of the quickest options available for as low as £539. 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
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Bedford
Romford
Southend-on-Sea

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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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