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Cheap flights from Peoria, Illinois to London from £346

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LON
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

£504

One-way from

£346

Popular in

July

Cheapest in

February

Average price

£549
American Airlines
  • American Airlines
  • 27/10-3/11
  • 4 total stops
  • 39h 18m total
  • Peoria to London
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British Airways
  • British Airways
  • 6/11
  • 1 total stop
  • 9h 59m total
  • Peoria to London
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Highest demand for flights based on searches. 19% potential increase in price (£115 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Peoria to London

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 September 2025.

Mon 27/1006:01PIA - LGW
2 stops21h 59mAmerican Airlines
Mon 3/1112:30LGW - PIA
2 stops17h 19mAmerican Airlines
Deal found 12/9£504
Sun 26/1020:10PIA - LHR
1 stop10h 25mBritish Airways
Sun 2/1115:45LHR - PIA
1 stop14h 04mBritish Airways
Deal found 11/9£521
Thu 27/1105:00PIA - LHR
1 stop22h 15mAmerican Airlines
Fri 5/1215:00LHR - PIA
1 stop14h 00mAmerican Airlines
Deal found 11/9£529
Mon 27/1020:10PIA - LHR
1 stop10h 25mBritish Airways
Mon 3/1119:05LHR - PIA
2 stops29h 54mBritish Airways
Deal found 12/9£546
Mon 27/1013:20PIA - LHR
1 stop11h 35mUnited Airlines
Mon 3/1116:40LHR - PIA
2 stops30h 00mUnited Airlines
Deal found 12/9£551
Sun 26/1010:51PIA - LHR
1 stop14h 04mUnited Airlines
Sun 2/1113:25LHR - PIA
2 stops33h 15mUnited Airlines
Deal found 11/9£574
Sun 28/918:25PIA - LHR
1 stop10h 05mBritish Airways
Sun 5/1009:15LHR - PIA
1 stop20h 28mBritish Airways
Deal found 10/9£577
Thu 27/1110:51PIA - LGW
2 stops18h 04mMultiple Airlines
Fri 5/1211:55LGW - PIA
2 stops15h 36mMultiple Airlines
Deal found 11/9£584
Sat 25/1006:55PIA - LHR
2 stops32h 40mUnited Airlines
Sat 1/1115:30LHR - PIA
2 stops29h 03mUnited Airlines
Deal found 10/9£597
Thu 27/1110:51PIA - LCY
2 stops19h 59mMultiple Airlines
Fri 5/1209:55LCY - PIA
2 stops30h 14mMultiple Airlines
Deal found 11/9£618
Sun 26/1015:30PIA - LCY
2 stops20h 10mLufthansa
Sun 2/1117:15LCY - PIA
2 stops29h 25mLufthansa
Deal found 11/9£700

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 September 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 - LGW

PIALGW

Greater Peoria

Mon 27/10

06:01-09:00

2 stops21h 59m

London Gatwick

Mon 3/11

12:30-23:49

2 stops17h 19m

£504

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 26/10

20:10-11:35

1 stop10h 25m

London Heathrow

Sun 2/11

15:45-23:49

1 stop14h 04m

£521

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 27/11

05:00-09:15

1 stop22h 15m

London Heathrow

Fri 5/12

15:00-23:00

1 stop14h 00m

£529

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 27/10

20:10-11:35

1 stop10h 25m

London Heathrow

Mon 3/11

15:45-23:49

1 stop14h 04m

£530

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Mon 27/10

13:20-07:10

2 stops12h 50m

London Heathrow

Mon 3/11

16:40-21:31

2 stops34h 51m

£551

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Thu 27/11

06:45-07:10

2 stops42h 25m

London Heathrow

Fri 5/12

13:25-21:31

2 stops38h 06m

£574

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 26/10

15:30-07:55

1 stop11h 25m

London Heathrow

Sun 2/11

13:25-16:40

2 stops33h 15m

£574

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sun 28/9

18:25-10:30

1 stop10h 05m

London Heathrow

Sun 5/10

09:15-23:43

1 stop20h 28m

£577

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Thu 27/11

10:51-10:55

2 stops18h 04m

London Gatwick

Fri 5/12

11:55-21:31

2 stops15h 36m

£584

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Thu 27/11

10:51-12:50

2 stops19h 59m

London City

Fri 5/12

09:55-10:09

2 stops30h 14m

£618

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 15 results
1
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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 10h 25m. American Airlines provides one of the quickest options available for as low as £521. 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.

  • What is the cheapest month to book a flight from Peoria, Illinois to London?

    Currently, January is the cheapest month in which you can book a flight from Peoria, Illinois to London (average of £112). Flying from Peoria, Illinois to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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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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.

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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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