Cheap flights from Helena to Illinois from $163
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Illinois departing on 3/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Delta flights from Helena to Illinois
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Alaska Airlines flights from Helena to Illinois
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How to get the cheapest flight ticket from Helena to Illinois
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Illinois?
The cheapest month to fly to Illinois from Helena is in February. Flight prices, which tend to average around $306, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $361.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Helena to Illinois is on a Wednesday when prices can be found for as low as $680. Flights from Helena to Illinois on a Monday will generally be more expensive and average around $780. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest airline that flies from Helena to Illinois?
United Airlines and Delta are the most popular carriers operating from Helena to Illinois
What airlines fly to Illinois?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Illinois from Helena according to our data. United Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
Cheap Helena to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Helena to Illinois
When did momondo last update prices for flights from Helena Airport to Illinois?
Prices for flights from Helena Airport to Illinois refresh daily.
How many operators does momondo search for flights from Helena Airport to Illinois?
As of February 2025, there are 2 operators available to choose from for flights from Helena Airport to Illinois.
How old do you have to be to fly from Helena Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Helena to Illinois
Compare and see reviews for airlines that fly from Helena to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $314 | Free Cancellation | Rating 8.0 8,151 reviews | |||
| PriceFrom $404 | Free Cancellation | Rating 7.4 8,732 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Helena to Illinois?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Helena to Illinois for you.
Can I find flights from Helena to Illinois with flexible booking policies on momondo?
Yes. All flights to Illinois from Helena on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Helena to Illinois?
momondo helps you find the best flight between Helena and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Helena to Illinois right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Illinois from Helena. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.