Fares shown are modelled estimates, not live quotes.
Other budgets from Chicago:
Lowest Route Estimates from Chicago Under $300
Sorted by modelled price estimate, not live fare data.
How to Find Flights Under $300 from Chicago
Book 6–10 weeks in advance
This is typically the sweet spot for international fares from Chicago. Too early and airline seats aren't discounted yet; too late and inventory is tight. The $300 threshold is easiest to hit in shoulder season.
Fly mid-week
Compare Tuesday and Wednesday departures from Chicago with weekend dates before booking.
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Frequently Asked Questions
Are there really international flights from Chicago under $300?
22 routes from Chicago have modelled round-trip estimates at or below $300. These are based on route distance and region, not live or historical fares.
When is the best time to find flights from Chicago under $300?
Shoulder seasons (April–May, September–October) can offer lower prices. Compare mid-week departures and nearby dates before booking.
What is the cheapest destination from Chicago?
Based on modelled estimates, Monterrey is one of the lowest estimated routes from Chicago at around $111 round trip. This is not a live fare.
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