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.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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.

What is the cheapest month to fly from Peoria, Illinois to London?

Our data shows that February tends to be the cheapest month to fly to London from Peoria, Illinois. Users have commonly found prices around £660 for the month, but tickets can be as low as £541. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from PIA to LON?

When flying from Peoria, Illinois to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

£434+ Cheap Flights from Peoria, Illinois to London

Cheap flight deals from Peoria to London

Round-trip from	£603
One-way from	£434
Popular in	June
Cheapest in	February
Average price	£737

British Airways
27/9-4/10
4 total stops
74h 05m total
Peoria to London

Search Deals

British Airways
22/8
1 total stop
10h 15m total
Peoria to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£99 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 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 15 August 2025.

Sat 27/918:15PIA - LHR

2 stops46h 10mBritish Airways

Sat 4/1020:00LHR - PIA

2 stops27h 55mBritish Airways

Deal found 13/8£603

Sat 27/910:39PIA - LHR

1 stop14h 11mAmerican Airlines

Sat 4/1009:15LHR - PIA

1 stop14h 30mAmerican Airlines

Deal found 13/8£628

Tue 19/818:39PIA - LHR

1 stop9h 51mBritish Airways

Tue 26/819:25LHR - PIA

2 stops28h 44mBritish Airways

Deal found 13/8£649

Sat 27/908:10PIA - LHR

2 stops30h 50mUnited Airlines

Sat 4/1011:05LHR - PIA

2 stops35h 38mUnited Airlines

Deal found 13/8£665

Wed 20/818:39PIA - LHR

1 stop9h 51mBritish Airways

Mon 25/814:25LHR - PIA

1 stop14h 57mBritish Airways

Deal found 13/8£695

Sat 27/910:48PIA - LCY

2 stops25h 42mMultiple Airlines

Sat 4/1009:20LCY - PIA

2 stops37h 23mMultiple Airlines

Deal found 13/8£714

Fri 5/918:25PIA - LHR

1 stop10h 40mBritish Airways

Sat 13/906:15LHR - PIA

2 stops21h 21mBritish Airways

Deal found 13/8£718

Sat 27/918:15PIA - LGW

2 stops44h 10mBritish Airways

Sat 4/1020:40LGW - PIA

2 stops27h 15mBritish Airways

Deal found 13/8£1,209

Best flights from Peoria to London
Discover carefully curated flight deals from Peoria to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 August 2025.

Sat 27/918:15PIA - LHR

2 stops46h 10mBritish Airways

Sat 4/1020:00LHR - PIA

2 stops27h 55mBritish Airways

Deal found 13/8£603

Sat 27/910:39PIA - LHR

1 stop14h 11mAmerican Airlines

Sat 4/1009:15LHR - PIA

1 stop14h 30mAmerican Airlines

Deal found 13/8£628

Sat 27/908:10PIA - LHR

2 stops30h 50mUnited Airlines

Sat 4/1011:05LHR - PIA

2 stops35h 38mUnited Airlines

Deal found 13/8£665

Sat 27/910:48PIA - LCY

2 stops25h 42mMultiple Airlines

Sat 4/1009:20LCY - PIA

2 stops37h 23mMultiple Airlines

Deal found 13/8£714

Fri 5/918:25PIA - LHR

1 stop10h 40mBritish Airways

Sat 13/906:15LHR - PIA

2 stops21h 21mBritish Airways

Deal found 13/8£718

Fri 5/915:55PIA - LHR

2 stops12h 45mMultiple Airlines

Sat 13/906:50LHR - PIA

2 stops14h 28mMultiple Airlines

Deal found 13/8£748

Sat 27/1213:20PIA - LHR

2 stops11h 50mUnited Airlines

Sat 3/113:25LHR - PIA

2 stops30h 43mUnited Airlines

Deal found 14/8£857

Sat 27/918:15PIA - LGW

2 stops44h 10mBritish Airways

Sat 4/1020:40LGW - PIA

2 stops27h 15mBritish Airways

Deal found 13/8£1,209

Last-minute flights from Peoria to London
Discover last-minute flight deals from Peoria to London. Data last updated 15 August 2025 and is based on user searches.

Tue 19/818:39PIA - LHR

1 stop9h 51mBritish Airways

Tue 26/819:25LHR - PIA

2 stops28h 44mBritish Airways

Deal found 13/8£649

Wed 20/818:39PIA - LHR

1 stop9h 51mBritish Airways

Mon 25/819:25LHR - PIA

2 stops28h 44mBritish Airways

Deal found 13/8£649

Wed 20/810:49PIA - LHR

2 stops14h 06mUnited Airlines

Mon 25/809:30LHR - PIA

2 stops30h 43mUnited Airlines

Deal found 14/8£742

Wed 20/818:39PIA - LHR

1 stop9h 51mBritish Airways

Mon 25/814:25LHR - PIA

1 stop14h 57mBritish Airways

Deal found 13/8£695

Thu 21/820:00PIA - LHR

1 stop28h 50mBritish Airways

Sat 23/819:10LHR - PIA

2 stops34h 12mBritish Airways

Deal found 14/8£1,251

Thu 21/815:55PIA - LHR

2 stops15h 05mUnited Airlines

Sat 23/809:30LHR - PIA

2 stops30h 43mUnited Airlines

Deal found 13/8£1,263

Fri 5/918:25PIA - LHR

1 stop10h 40mBritish Airways

Sat 13/906:15LHR - PIA

2 stops21h 21mBritish Airways

Deal found 13/8£718

Sat 27/918:15PIA - LHR

2 stops46h 10mBritish Airways

Sat 4/1020:00LHR - PIA

2 stops27h 55mBritish Airways

Deal found 13/8£603

Sat 27/910:39PIA - LHR

1 stop14h 11mAmerican Airlines

Sat 4/1009:15LHR - PIA

1 stop14h 30mAmerican Airlines

Deal found 13/8£628

Sat 27/908:10PIA - LHR

2 stops30h 50mUnited Airlines

Sat 4/1011:05LHR - PIA

2 stops35h 38mUnited Airlines

Deal found 13/8£665

Sat 27/910:48PIA - LCY

2 stops25h 42mMultiple Airlines

Sat 4/1009:20LCY - PIA

2 stops37h 23mMultiple Airlines

Deal found 13/8£714

Sat 27/918:15PIA - LGW

2 stops44h 10mBritish Airways

Sat 4/1020:40LGW - PIA

2 stops27h 15mBritish Airways

Deal found 13/8£1,209

Fly from

Fly to

Route

Depart

Return

Price

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 27/9

18:15-22:25

2 stops46h 10m

London Heathrow

Sat 4/10

20:00-17:55

2 stops27h 55m

£603

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 27/9

10:39-06:50

1 stop14h 11m

London Heathrow

Sat 4/10

09:15-17:45

1 stop14h 30m

£628

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 27/9

08:10-21:00

2 stops30h 50m

London Heathrow

Sat 4/10

11:05-16:43

2 stops35h 38m

£665

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Sat 27/9

10:48-18:30

2 stops25h 42m

London City

Sat 4/10

09:20-16:43

2 stops37h 23m

£714

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 5/9

18:25-11:05

1 stop10h 40m

London Heathrow

Sat 13/9

06:15-21:36

2 stops21h 21m

£718

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 5/9

15:55-10:40

2 stops12h 45m

London Heathrow

Sat 13/9

06:50-15:18

2 stops14h 28m

£748

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Sat 27/12

13:20-07:10

2 stops11h 50m

London Heathrow

Sat 3/1

13:25-14:08

2 stops30h 43m

£857

PeoriaLondon

PIA - LGW

PIALGW

Greater Peoria

Sat 27/9

18:15-20:25

2 stops44h 10m

London Gatwick

Sat 4/10

20:40-17:55

2 stops27h 15m

£1,209

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 22/8

20:00-12:15

1 stop10h 15m

£434

PeoriaLondon

PIA - LHR

PIALHR

Greater Peoria

Fri 22/8

08:10-07:40

2 stops17h 30m

£447

Flights are sorted by cheapest return flights first.

Deals found on 14/8

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

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.
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

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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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Cheap flights from Peoria, Illinois to London from £434

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Peoria to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Peoria to London

Cheapest flights from Peoria to LondonExplore 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 15 August 2025.

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 15 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Peoria to London that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Peoria 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?

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

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

How can I find direct flights from Peoria to London?

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

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

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

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

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

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

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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 15 August 2025.