$23 Cheap Flights to Grendon Underwood

View $23 flight on Mon, Nov 17, 2025Opens in a new window

Popular airlines

How much is the cheapest flight to Grendon Underwood?

Prices were available within the past 7 days and start at $23 for one-way flights and $44 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Thu, Oct 9 - Sat, Oct 11
DUB
Dublin
LTN
London
$44 Roundtrip, found 22 hours ago
$44
Roundtrip
found 22 hours ago
Select Ryanair flight, departing Thu, Oct 9 from Dublin to London, returning Sat, Oct 11, priced at $44 found 22 hours ago
Wizz Air Malta
Sun, Nov 30 - Wed, Dec 3
MXP
Milan
LTN
London
$47 Roundtrip, found 6 days ago
$47
Roundtrip
found 6 days ago
Select Wizz Air Malta flight, departing Sun, Nov 30 from Milan to London, returning Wed, Dec 3, priced at $47 found 6 days ago
Wizz Air UK
Thu, Jun 25 - Mon, Jun 29
MAD
Madrid
LTN
London
$66 Roundtrip, found 6 days ago
$66
Roundtrip
found 6 days ago
Select Wizz Air UK flight, departing Thu, Jun 25 from Madrid to London, returning Mon, Jun 29, priced at $66 found 6 days ago
easyJet
Thu, Oct 23 - Fri, Oct 31
EDI
Edinburgh
LTN
London
$77 Roundtrip, found 6 days ago
$77
Roundtrip
found 6 days ago
Select easyJet flight, departing Thu, Oct 23 from Edinburgh to London, returning Fri, Oct 31, priced at $77 found 6 days ago
EL AL Israel Airlines
Wed, Jan 7 - Wed, Jan 14
TLV
Tel Aviv
LTN
London
$433 Roundtrip, found 4 days ago
$433
Roundtrip
found 4 days ago
Select EL AL Israel Airlines flight, departing Wed, Jan 7 from Tel Aviv to London, returning Wed, Jan 14, priced at $433 found 4 days ago

Find the cheapest month to fly from Columbus (CMH) to London (LHR)

January is typically the cheapest month to fly

From $517 - $1,567 per traveler.

Frequently asked questions

Where can I learn more about changing or canceling my flight to Grendon Underwood?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
How do I find cheap flights to Grendon Underwood that have flexible change policies?
It's quick and easy with Expedia. Step 1: Type in your travel details and click the "Search" button. Step 2? Check "No change fee" just below the "Flexible change policies" filter to the left of your screen. Step 3. Snag a cheap and flexible flight to Grendon Underwood.
What is the name of Grendon Underwood's airport?
Grendon Underwood is served by multiple airports, but most travelers use Heathrow Airport (LHR).
What airport is best to fly into Grendon Underwood?
Travelers flying into Grendon Underwood have lots of options. Depending on where you're heading and the deals available, you'll likely be touching down at Heathrow Airport (35 mi from downtown), London Gatwick (60 mi from downtown) or Stansted Airport (55 mi from downtown).
How many airlines fly to Grendon Underwood?
There are a total of 110 airlines connecting Grendon Underwood to 343 airports across the world.
How many nonstop flights are there to Grendon Underwood?
With 9,364 direct flights each week, you'll be arriving in Grendon Underwood before you have time to say, "Are we there yet?"
Where are the most popular flights to Grendon Underwood departing from?
The most popular flights to Grendon Underwood take off from Amsterdam, Dublin and Edinburgh airports.
How long is the flight to Grendon Underwood Airport?
Which city you depart from determines how much of the in-flight entertainment you'll get to see. From Dublin to Grendon Underwood, the average flight time is 1 hour and 22 minutes. From Schiphol it's more like 1 hour and 10 minutes, and from Edinburgh it's 1 hour and 25 minutes.
How to book the cheapest flight to Grendon Underwood?
We all know those fortunate travelers who manage to score incredibly cheap airfares whenever they fly. Want to know how to do it for your Grendon Underwood vacation? Don't leave it until the last minute to lock in your flight. Another fantastic way to pick up the most competitive fare is to compare all options. If your destination has more than one airport, be sure to look into the cost of flying into a smaller terminal. And finally, remember that the early bird catches the worm. Know what a typical airfare costs and have your credit card ready to buy your ticket as soon as you see an unbeatable bargain. The best deals never last long.
How to survive the flight to Grendon Underwood?
Wherever you're coming from, flying can be an enjoyable experience if you've planned ahead. We've compiled a list of handy hints that will get your Grendon Underwood vacation started on the right foot.What to pack in your hand luggage:

  • The trick to having an awesome flight experience is to pack ahead. Start with the essentials: passport, travel docs, bank cards and important medications. Next, bring on board items that'll help keep you entertained, like some electronic devices or a good book. You'll also want to bring your chargers, a quality neck pillow and a pair of headphones. And of course, be sure to toss in toiletries like a toothbrush, deodorant and a spare change of clothes.

Do not pack the following items in your hand luggage:

  • Put all your full-sized bottles of shampoo and hairspray in your checked luggage. Any liquids or gels in your carry-on bag larger than 3.4 ounces (100 milliliters) will be confiscated by security. Pointed or sharp objects, like your precious Swiss Army knife, and dangerous goods which are explosive or flammable, such as flares, chemicals agents and gasoline, are also restricted.

What to wear on a flight:

  • The key to a comfortable flight is as simple as the clothes you wear. Prepare yourself for varying temperatures by bringing layers. This will keep you nice and warm if the cabin begins to cool down. Shoes like high heels and sandals are best left for other occasions. Even though they may be your favorites, opt for flat, closed-toed footwear like sneakers. Your feet will appreciate it.
  • Most of us have heard about DVT (deep vein thrombosis), a blood clotting condition caused by prolonged periods of sitting. There are plenty of ways to lower your risk. Wear compression tights or socks, stay hydrated and keep your legs and feet moving. Do a lap or two of the cabin or perform some stretches in your seat.

How to get through airport security fast when flying to Grendon Underwood?
The trick is to be prepared before you get to the security gate. That way, you'll be stepping onto that plane to Grendon Underwood in the blink of an eye. Follow these helpful tips and get your vacation off to a terrific start:

  • Airport security personnel first need to establish that you have a valid ID and boarding pass before anything else. Keep them close by.
  • The X-ray machine comes next. Remove anything on you that is likely to beep. This includes items like earphones or headphones, as well as heavy jackets or coats. They'll need to be placed on the conveyor belt for screening.
  • All your electronics, including your phone and laptop, must also be scanned.
  • Traveling with a new perfume or cologne? Not a problem. As long as the volume is no greater than 3.4 ounces (100 milliliters) and it's stored in a clear zip-close bag, you're permitted to bring it with you in your carry-on bag.
  • The right choice of footwear can save you several minutes. Boots and bulky shoes are often required to be removed and X-rayed separately. Slip-on shoes usually aren't.
  • Sharp or pointed objects (like knives and scissors) are not allowed on board. They'll be seized at security, so put them in your checked luggage.

Book with confidence

Book with confidence

Tips to find the cheapest flights to Grendon Underwood

The cheapest day to fly

Get started finding a cheap flight to Grendon Underwood on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

October is the cheapest month to fly to Grendon Underwood. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Grendon Underwood. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Grendon Underwood, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Grendon Underwood

The lowest price for round-trip flights to Grendon Underwood in 2025 starts from from $44, while one-way tickets start from from $23. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Grendon Underwood. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Grendon Underwood

Wizz Air Malta, Ryanair, easyJet, Wizz Air UK, Fly One S.R.L., EL AL Israel Airlines are just some of the airlines that can typically offer cheap tickets to Grendon Underwood. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Grendon Underwood and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Grendon Underwood, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Grendon Underwood. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Grendon Underwood plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Grendon Underwood

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Grendon Underwood.

Stopover savings

The cheapest tickets to Grendon Underwood are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Grendon Underwood. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Grendon Underwood for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Grendon Underwood. Simply download the free Expedia app to your smart device and activate Grendon Underwood flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Grendon Underwood. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Tips to find the cheapest flights to Grendon Underwood

Travel information

Travel information

Destination airport
Luton
Destination airport IATA code
LTN
Destination city name
London
Roundtrip price
$43

Trending flights to Grendon Underwood

Prices were available within the past 7 days and start at $23 for one-way flights and $44 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Sep 29 - Sun, Oct 12
MCO
Orlando
OXF
Oxford
$687 Roundtrip, found 6 days ago
$687
Roundtrip
found 6 days ago
Select British Airways flight, departing Mon, Sep 29 from Orlando to Oxford, returning Sun, Oct 12, priced at $687 found 6 days ago
*Available to One Key members.