
Popular airlines to Mountainside
- United
United
- American Airlines
American Airlines
- Spirit Airlines
Spirit Airlines
- Delta
Delta
- JetBlue Airways
JetBlue Airways
- Frontier Airlines
Frontier Airlines
- Alaska Airlines
Alaska Airlines
- Plan, book, fly with confidence
trending down icon Be in the knowGet alerts if flight prices drop or rise*bex rewards loyalty icon Book smarterSave up to 30% on select hotels after you book a flight*one key icon
How much is the cheapest flight to Mountainside?
Prices were available within the past 7 days and start at $44 for one-way flights and $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.





Find the cheapest month to fly from Columbus (CMH) to New York (EWR)
November is typically the cheapest month to fly
Graph displaying average flight prices per month
Tips to find the cheapest flights to Mountainside
The cheapest day to fly
Get started finding a cheap flight to Mountainside 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
July is the cheapest month to fly to Mountainside. 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 Mountainside. 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 Mountainside, 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 Mountainside
The lowest price for round-trip flights to Mountainside in 2025 starts from from $83, while one-way tickets start from from $44. 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 Mountainside. If you have a preferred departure time or airline, you can use the handy filters to customize your search.
The cheapest airlines flying to Mountainside
Spirit Airlines, Frontier Airlines, American Airlines, JetBlue Airways, United, Southwest Airlines, Delta are just some of the airlines that can typically offer cheap tickets to Mountainside. 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 Mountainside and countless more destinations worldwide.
The most affordable airports to fly into
To view the cheapest airports to fly into for Mountainside, 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 Mountainside. 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 Mountainside 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 Mountainside
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 Mountainside.
Stopover savings
The cheapest tickets to Mountainside are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Mountainside. 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 Mountainside 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 Mountainside. Simply download the free Expedia app to your smart device and activate Mountainside 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 Mountainside. 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.
Frequently asked questions
Destination airport | LaGuardia |
Destination airport IATA code | LGA |
Destination city name | New York |
Roundtrip price | $82 |
Get up to 100% off your flight to Mountainside when booking a Flight + Hotel
Trending flights to Mountainside
Prices were available within the past 7 days and start at $44 for one-way flights and $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Explore a world of travel with Expedia
Lodging
- Westfield Hotels
- Apartments in Westfield
- B&B in Westfield
- Pet-friendly Hotels in Westfield
- Motels in Westfield
- Resorts & Hotels with Spas in Westfield
- 5 Star Hotels in Westfield
- 4 Star Hotels in Westfield
- Marriott Hotels & Resorts in Westfield
- Boutique Hotels in Westfield
- Condo Rentals in Westfield
- 3 Star Hotels in Westfield
- Hostels in Westfield
- Extended Stay America Hotels in Westfield
- Luxury Hotels in Westfield
- Family Hotels in Westfield
- Resorts in Westfield
- Romantic Hotels in Westfield
- Club Quarters Hotels in Westfield
- Extended Stay Hotels in Westfield
- Best Western Hotels in Westfield
- Golf Hotels in Westfield
- All-inclusive Resorts in Westfield
- Historic Hotels in Westfield
- Empire Hotel Group in Westfield
- Hotels near Echo Lake Country Club
- Hotels near Feltville Historic District
- Hotels near Westfield Station
- Hotels near Garwood Station
- Condo Rentals in Garwood Station
- Scotch Plains Hotels
- Garwood Hotels
- B&B in Garwood
- 3 Star Hotels in Garwood
- Hostels in Garwood
- 5 Star Hotels in Scotch Plains
- Best Western Hotels in Scotch Plains
- B&B in Scotch Plains
- Motels in Scotch Plains
- 4 Star Hotels in Scotch Plains
- Gay friendly Hotels in Scotch Plains
- RV Parks in Scotch Plains
- Vacation Homes in Scotch Plains
- Hotels near Nomahegan Park
- Fanwood Hotels
- 5 Star Hotels in Fanwood
- B&B in Fanwood
- 3 Star Hotels in Fanwood
- Aparthotels in Fanwood
- 4 Star Hotels in Fanwood
- B&B in Fanwood Station
- Hotels near Fanwood Station
- Springfield Hotels
- Hotels near Baltusrol Golf Club
- Motels in Springfield
- Apartments in Springfield
- 4 Star Hotels in Springfield
- 5 Star Hotels in Springfield
- Gay friendly Hotels in Springfield
- 3 Star Hotels in Springfield
- Summit Hotels
- Hotels near Visual Arts Center of New Jersey
- Hotels near Unami Park
- New Providence Hotels
- Hotels near New Providence Murray Hill Station
Cars
- Car rentals near Westfield
- Budget Rental Cars in Westfield
- Thrifty Car Rental Rental Cars in Westfield
- Car rentals near Echo Lake Country Club
- Car rentals near Scotch Plains
- Car rentals near Garwood
- Enterprise Rental Cars in Scotch Plains
- Minivan Car Rentals in Scotch Plains
- Car rentals near Fanwood
- Car rentals near Springfield