DTS Basics: Everything You Need to Know About Defense Travel System and Travel Documents
If you've ever stared at a screen trying to figure out how to book official travel through the Defense Travel System, you're not alone. Every year, thousands of service members, civilians, and contractors go through the same confusion — wrestling with orders, wrestling with the system, and wondering why something that sounds simple can feel so complicated Simple as that..
Here's the thing: DTS isn't actually that hard once you understand the basics. The problem is most people jump in without knowing the foundation. They miss the critical first steps, then wonder why their travel authorization won't process or why their reimbursement gets held up.
So let's fix that. Whether you're new to military travel or just need a refresher, this guide covers the DTS essentials, the travel documents you'll actually need, and the stuff that trips most people up.
What Is DTS and Why Does It Exist?
DTS stands for Defense Travel System — the Department of Defense's centralized, web-based system for managing official travel. If you're traveling for the military (TDY, permanent change of station, temporary duty), this is the system that makes it happen.
Think of it as the DoD's answer to a corporate travel portal, but with more rules, more oversight, and more acronyms. It handles everything from requesting travel authorization to booking flights and hotels to submitting vouchers for reimbursement after your trip.
Why does a system like this exist?
Because the military moves a lot of people. Before DTS, each branch handled travel its own way, which meant inconsistent processes, duplicate systems, and a nightmare for auditing. We're talking hundreds of thousands of trips per year — training, conferences, deployments, temporary duty assignments. DTS brought everyone under one roof so the government could track spending, enforce policy, and keep things compliant.
Here's what that means for you: when you use DTS, you're not just booking travel. You're creating an official record tied to your orders, your budget, and your chain of command's approval chain Most people skip this — try not to. Took long enough..
The Core Components: What DTS Actually Does
DTS isn't one thing — it's a collection of modules that work together. Understanding these pieces makes everything else easier.
Travel Authorizations
This is where it starts. Here's the thing — it links to your orders, outlines your itinerary, estimates your costs, and gets approved by your supervisor or travel clerk before you go anywhere. This leads to a travel authorization (TA) is your request to travel. No approved TA? No official travel — at least not one the government will pay for.
DTS Registration
Before you can do anything in DTS, you need to be registered in the system. Worth adding: this means setting up your profile with your personal information, emergency contacts, travel preferences, and direct deposit details for reimbursement. Go to the DTS website, find your organization, and get registered. And if you've never used DTS before, this is your first step. It sounds basic, but people skip it all the time and then can't figure out why they can't start an authorization Easy to understand, harder to ignore..
Voucher Submission
After your travel is complete, you submit a voucher to get reimbursed. This is where you reconcile what you actually spent against what was authorized. Did you stay at a different hotel? Now, take a different flight? These changes need to be documented in your voucher with receipts Worth keeping that in mind..
DTS Travel Documents: What You'll Actually Need
This is the part where most people get stuck. In what order? They know they need "documents," but which ones? Here's the breakdown.
Official Orders
This is non-negotiable. Your orders are the legal basis for your travel — they tell DTS why you're going, where you're going, how long you'll be there, and who's paying for it. Without orders linked to your authorization, DTS won't let you proceed Simple, but easy to overlook..
Orders come in different flavors: permanent orders (PCS), temporary duty orders (TDY), and contingency orders, among others. Here's the thing — each has different implications for per diem, lodging, and transportation. Make sure your orders match what you're trying to book.
Travel Authorization Document
Once you create and submit your TA in DTS, the system generates an authorization document. In real terms, this is different from your orders — it's DTS's internal version that includes your approved itinerary, estimated costs, and approval chain. Your travel clerk or supervisor will approve this in the system before you travel Small thing, real impact..
Keep a printed or digital copy. You'll need it at the airport, at lodging, and sometimes for checkpoint verification.
Receipts
Receipts matter more than most people realize. Consider this: dTS requires receipts for any individual expense over $75, but good practice is to keep receipts for everything. Hotels, rental cars, airfare, meals (in some cases) — if you spent government money, you need proof.
The common mistake? In practice, throwing away receipts because "the system has it. " It doesn't. In real terms, not until you upload them. Save every receipt, snap photos of them immediately, and upload them to your voucher when you get back It's one of those things that adds up. No workaround needed..
DTS Profile and Emergency Contact Information
Your DTS profile isn't a "document" in the traditional sense, but it's critical. Make sure your direct deposit information is current, your emergency contacts are accurate, and your travel preferences (like seating or meal requests) are entered. This saves huge headaches later when you're trying to book or when finance is trying to reimburse you.
How to Actually Use DTS: A Step-by-Step Overview
Here's where we get practical. What does using DTS actually look like from start to finish?
Step 1: Get Your Orders
It starts here. Still, your orders come from your chain of command, usually through your personnel office. That said, don't try to book anything until you have orders in hand — or at least in the system. You'll need the order number, dates, location, and purpose But it adds up..
Step 2: Register (If You Haven't Already)
If you've never used DTS, go to the Defense Travel System website and register. Your organization code (the "DTS location" you select) matters — pick the right one for your branch or agency. If you're unsure, ask your unit's travel clerk.
Not the most exciting part, but easily the most useful.
Step 3: Create Your Travel Authorization
Log into DTS and start a new authorization. The system will walk you through linking your orders, entering your itinerary, and estimating costs. This is where you'll select flights, lodging, and rental cars (if authorized).
Step 4: Get Approval
Once you submit your TA, it goes to your travel clerk and supervisor for approval. Because of that, they might send it back for changes — that's normal. Don't book anything that requires payment until you see "Approved" in the system.
Step 5: Travel
Use your approved authorization as your guide. Stick to what was authorized where possible. Think about it: if something changes (flight cancels, hotel isn't available), document it. You'll need to explain deviations in your voucher Small thing, real impact..
Step 6: Submit Your Voucher
Within a few days of returning, log back into DTS and create a voucher. That's why this is where you enter what you actually spent. Upload your receipts, reconcile any differences from your authorization, and submit for payment Still holds up..
Common Mistakes People Make With DTS
Let's be honest — most of these mistakes are avoidable once you know better. Here's what trips people up most often The details matter here..
Starting without orders. This is the #1 issue. You cannot create a valid authorization without orders. Don't waste time in the system until you have your order number and details.
Booking outside DTS. Sometimes people book their own flights or hotels thinking they'll get reimbursed later. This rarely works out. The system is designed to book within policy. When you book outside DTS, you're often violating regulations or making your voucher a nightmare. Use the system Which is the point..
Ignoring the approval status. Just because you submitted your TA doesn't mean you can travel. Wait for approval. I've heard stories of people who booked flights, showed up at the airport, and found out their authorization was never approved. Check the status.
Losing receipts. This is so common it's almost a cliché. You spent $400 on a hotel, didn't keep the receipt, and now you're trying to claim it with a handwritten note. That doesn't fly. Save everything.
Waiting too long on vouchers. There's usually a deadline — often 5 business days after your travel ends. If you wait weeks to file, you might face delays, restrictions, or questions. File your voucher promptly But it adds up..
Not updating your profile. If your bank account changed or your emergency contact is outdated, your reimbursement might get rejected or sent to the wrong place. Keep your profile current.
Practical Tips That Actually Help
A few things that make DTS much smoother:
- Use a travel clerk if you have one. They're trained on this system. Let them help you, especially for your first few times.
- Book early. DTS has dynamic pricing, and flights fill up. The earlier you book, the more options and better rates you'll find.
- Know your per diem. The government sets daily rates for lodging, meals, and incidental expenses based on location. You can look these up on the GSA website. Don't book a $300/night hotel if the per diem is $150 — you'll be paying the difference yourself.
- Keep digital copies of everything. Photos of receipts, PDFs of orders, screenshots of your authorization. Store them in a folder on your computer or in a cloud service. Paper gets lost.
- Ask questions. If something doesn't make sense, ask. Your supervisor, your travel clerk, your unit's admin — someone has been through this before.
FAQ: Quick Answers to Common DTS Questions
What is DTS in simple terms? DTS is the online system the Department of Defense uses to manage official travel — from requesting permission to book flights and hotels to getting reimbursed afterward.
What documents do I need for DTS travel? Your official orders are essential. You'll also need receipts for expenses, your DTS profile information, and your approved travel authorization document.
Can I use DTS for personal travel? No. DTS is strictly for official government travel authorized by military orders or civilian travel orders And that's really what it comes down to. Less friction, more output..
What happens if I don't get my voucher submitted on time? You may face delays in reimbursement, and some units have policies that restrict future travel until vouchers are current. Check your unit's specific timeline requirements.
Do I have to book everything through DTS? In most cases, yes. DTS is designed to ensure travel is booked within government regulations and rates. Booking outside the system typically isn't allowed for official travel.
The Bottom Line
DTS isn't going anywhere. It's how the military handles travel, and understanding it is part of the job. The good news is it's not that complicated once you know the basics: get your orders first, register in the system, create your authorization, wait for approval, travel according to plan, and file your voucher promptly.
The people who struggle with DTS are usually the ones who try to skip steps or guess their way through. Which means don't be that person. Use your travel clerk, keep your receipts, and read what the system is telling you.
You'll get where you're going, and you'll get paid back without the headache. That's really all there is to it.
