A river with a forest and mountains in the background.

Cheap Flights to Index: Index Flight Deals

View €361 flight on Sat, 7 Nov 2026Opens in a new window

Flight 1

Popular airlines to Index

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Index

Prices were available within the past 7 days and start at €361 for one-way flights and €496 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
KLM
Air France
British Airways
Condor

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

From €242 - €342 per traveller.

Frequently asked questions

What is the name of Index's airport?
Seattle - Tacoma Intl. Airport (SEA) is the most frequently utilized airport in Index.
What airport is best to fly into Index?
Travellers heading to Index can opt to hit the runway at two major airports. Seattle - Tacoma Intl. Airport (SEA) is 72 kilometres away from the downtown streets. PAE is 56 kilometres away.
How many airlines fly to Index?
Index is serviced by 38 airlines from at least 124 airports across the globe.
Which airlines fly to Index?
Most often, travellers choose to fly with Alaska Airlines, Delta and American Airlines when heading to Index. The largest number of these flights originate in Los Angeles, with Alaska Airlines servicing this route the most frequently.
How many nonstop flights are there to Index?
With roughly 3,464 nonstop flights operating every week, you'll be hitting the runway in Index before you can say, "Are we there yet?"
Where are the most popular flights to Index departing from?
Flights to Index from Los Angeles, Phoenix and Portland airports are very popular.
How long is the flight to Index Airport?
If you're flying to Index from Los Angeles, you're looking at a flight time of 3 hours. Those setting off from Phoenix can expect to be on the plane for 3 hours and 17 minutes. From Portland it's roughly 1 hour and 5 minutes away.
How to book the cheapest flight to Index?
Don't leave locking in your flight to Index until the last possible moment. That's one move frequent jet-setters use to get the best deals. Booking ahead means more choices and more affordable flights. Also, look around online and compare your options. If your destination has more than one airport, you may be able to score a great deal by flying into a less busy terminal. And finally, remember that the early bird catches the worm. Know what a typical airfare costs and have your credit card ready to reserve your seat as soon as you spot a bargain. The best deals don't last long.
Do you have any tips for my flight to Index?
Depending on where you're coming from, your trip to Index could be no sweat at all or it could go on forever. We've pulled together some useful hints that will help you start your next great escape on a positive note. What to pack in your hand luggage:
  • The trick to having a pain-free travel experience is to plan ahead. So, let's start with the basics: passport, travel documents, cash and medications. Next, bring on board items that'll help pass the time, like some electronic devices or a good book. It's also a wise idea to bring your chargers, a comfy neck pillow and a pair of noise-cancelling headphones. Finally, don't forget to toss in toiletries like a toothbrush, lip balm and a clean T-shirt.
Do not pack the following items in your hand luggage:
  • While the list of prohibited items differs between airlines, the general rule of thumb is nothing sharp, flammable or explosive. This includes screwdrivers, blades, fuel and fireworks. Sporting equipment like ski poles, and items that could harm passengers, such as swords and guns, can't come on board with you either.
What to wear on a flight:
  • Your aim is to be as comfortable as you can. Choose shoes that are easy to pull on and off, dress in loose, breathable clothing and remember to bring a sweater in case it gets cold in the cabin.
  • Most of us have heard about deep vein thrombosis (DVT), a blood clotting condition caused by prolonged periods of sitting. To minimize your risk on board, drink plenty of water, consider wearing compression socks and do gentle foot and leg exercises in your seat.
How to get through airport security fast when flying to Index?
Being prepared before you get to the airport will make your trip to Index a piece of cake. Below you'll find some handy tips for a speedy journey past security:
  • First things first. Your boarding pass and travel ID will need to be inspected by airport security. Have them easily accessible so you don't hold up the queue.
  • Next up is the X-ray machine. Remove anything on you that is likely to set off the scanner's alarm. This includes items like headphones or earphones, as well as bulky coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • All your electronics, including your tablet and phone, are also required to be scanned separately.
  • Remember to remove liquids and gels from your hand luggage. They often need to be sent through the X-ray separately. Each item should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit inside a single quart-size (one litre), clear zip-lock bag.
  • Lightweight sneakers are a great footwear choice as you're less likely to have to remove them when going through security. Boots and other heavy-style shoes are usually subjected to additional screening.
  • Airlines will not allow any pocket knives or other sharp items in the cabin. If you must bring these kinds of items, pack them in your checked baggage.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Index. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Index. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Index, or are just on the lookout for the best flights to Index, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Index to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Return price
€496

Trending flights to Index

Prices were available within the past 7 days and start at €361 for one-way flights and €496 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
*Available to Expedia members.