$2,873+ Cheap flights from Missouri to Tonga
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — TBU
Apr 7 — Apr 141
1 adult, Economy
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Cheapest flights from Missouri to TongaExplore the most affordable flight options available from Missouri to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.
Explore the most affordable flight options available from Missouri to Tonga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.
This Priceline deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/26:15 amSTL - TBU
2 stops33h 55mMultiple Airlines
Tue 4/155:40 amTBU - STL
2 stops35h 36mMultiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$2,873
Best time to book a flight from Missouri to Tonga
Have a flexible travel schedule? Discover the best time to fly to Tonga from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Missouri to Tonga
Rainfall in Tonga by month
Plan your trip to Tonga by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Tonga ranges from 3.7 - 8.3 inches per month. February is typically the wettest month, when rainfall can reach 8.3 in. June is typically the driest time to visit Tonga when rainfall is around 3.7 in.
Temperature in Tonga by month
Plan your trip to Tonga by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Tonga, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 71.6 F).