Low Fare Calendar

See when it’s cheapest to fly with United Airlines.

How to Use the United Airlines Low Fare Calendar

Choose Your Route

Enter your departure and destination cities to start searching.

Check the Calendar

Browse the low fare calendar to see the cheapest flight dates at a glance.

Book and Save

Pick the lowest airfare and complete your booking — simple as that!

Find Cheapest Dates
Low fare calendar showing cheapest departure and return dates London–Barcelona, September 2025.

Easily find the cheapest dates to fly

If you’re flexible with your travel dates, our low fare finder makes it easy to avoid overpaying. The calendar view shows the cost of United Airlines flights across an entire month, so you can quickly spot the cheapest days to fly and book at the right time.

Low fare calendar with airline filter: Vueling, Ryanair, Jet2, easyJet, British Airways.

Filter by airlines to see their lowest fares

You can also compare United Airlines prices with other carriers like Delta, American, or Southwest on the same route. This side-by-side view helps you decide whether United offers the best value or if another airline is running a better promotion.

Frequently Asked Questions

Answers to common queries about our low fare calendar and how it helps you secure the best deals on airfare.

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What is the Low Fare Calendar?
It’s a monthly overview of United Airlines fares that helps you find the lowest prices at a glance. Instead of checking one day at a time, the calendar shows a full month of options so you can plan around the cheapest flights.
How do I use the Low Fare Calendar to book cheap United Airlines flights?
Enter your route, choose flexible dates, and review the monthly grid of fares. The tool highlights the lowest prices, making it simple to pick the most affordable travel days and book United Airlines flight deals without hassle.
What are the cheapest days to fly on United Airlines?
Midweek flights, especially on Tuesdays and Wednesdays, are usually less expensive, while Fridays and Sundays are often the most costly. The calendar helps you compare different days so you can travel when United Airlines tickets are cheapest.
What tools can I use to track United flight prices?
Along with the fare calendar, you can sign up for our Flight Price Tracker by email. This feature sends you price alerts when fares drop on your selected route. It gives you the best chance to find last-minute deals or book at the right time.

Plan smarter with flexible search options.

Airfares on United Airlines change based on demand, season, and how far in advance you book. For domestic flights, prices are usually lowest when booked one to three months before departure. For long-haul international routes, checking two to six months ahead often provides better deals. By looking at an entire month of fares, you can easily spot when tickets are cheapest and adjust your travel plans accordingly.


Our calendar view serves as a fare finder and becomes even more useful when combined with price alerts. You can keep an eye on United Airlines deals, get notified when fares change, and grab cheap tickets before they sell out. Whether you’re planning a short trip within the U.S. or a journey to Europe, Asia, or South America, these tools give you the information and flexibility to travel for less.

Find the cheapest days to fly

Use the low fare calendar to see prices by day and pick the lowest airfare.

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